Can Anxiety Cause Brain Fog?
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Evidence and recovery context
Investigate: Could anxiety be causing my brain fog?
What can help this week?
During brain fog, fewer interruptions and written reminders can make daily tasks easier to manage. Put the next step somewhere visible, ask for important information in writing and give yourself time to finish one thing before starting another.
Make a difficult moment more manageable
Move somewhere quieter if you can. Reduce the number of choices in front of you. Ask someone for a specific task, such as writing down the appointment details or helping prepare food. If you have missed a meal or need a drink, attend to that ordinary need without assuming it explains every symptom.
You can try the grounding exercise by naming things around you. It is a way to direct attention to a concrete task. You can skip the breathing part or stop the exercise if it increases distress.
What do common self-help suggestions offer?
Caffeine.
Include coffee, tea, energy drinks and caffeine tablets when you check the amount and timing. If you reduce it, do so gradually: withdrawal can cause headache and fatigue. In nine high-dose challenge studies, 51.1% of 237 people with panic disorder had a panic attack after caffeine, compared with none after placebo. The doses were 400–750 mg, usually about 480 mg. That result cannot tell you what a small coffee will do, but it gives people with panic a reason to examine caffeine use.
Sleep.
Breathing.
A study compared five minutes a day of breathing exercises with mindfulness practice over a month. Breathing practice, especially a method with a prolonged out-breath, improved mood and reduced breathing rate. Those were the measured benefits; the study did not test recovery from brain fog. The cyclic-sighing exercise used a second inhale after the first, followed by a long, slow exhale. Keep breathing comfortable and stop if you become dizzy, breathless or more distressed. The slow-breathing guide offers a simpler pace without a breath hold.
Cold water on the face.
A small physiology study found that cooling the face could slow the heart rate. It did not test whether this treated anxiety or brain fog. A change in heart rate is not the same as symptom recovery.
Activity.
Choose movement you can manage or a small activity you care about. Judge it by how you feel afterward as well as during it. Delayed worsening after exertion needs a different plan from simply increasing activity each week.
Meals.
Make a practical plan to avoid unintentionally missing meals. Keep food available when cooking is difficult. If symptoms keep following meals or fasting, record a few examples for the assessment instead of repeatedly testing or eating to chase every sensation.
Symptoms on standing.
If standing repeatedly brings on a racing heart or faintness, arrange an assessment that includes heart rate and blood pressure. Stop an observation if you feel faint; a home standing exercise is not required to earn a review.
Change one useful thing at a time when possible. Keep only the notes that help you decide whether to continue the change.
Can anxiety cause brain fog?
Anxiety can make it harder to hold information in mind and switch between tasks. You might reread a paragraph because you lost track of the first sentence, forget what you were about to say, or need more time to make a decision.
Working memory is the information you hold in mind while doing something. Following directions and keeping track of a conversation both use it. A review of 177 samples, involving 22,061 people, linked anxiety with poorer working-memory performance. A later review of 32 studies found differences in working memory and mental flexibility in people with generalized anxiety disorder, or GAD. It did not find the same result for every thinking skill.
Several situations deserve different questions:
Thinking changes with worry or panic.
Note what becomes difficult and whether it becomes easier during calmer periods.
Another difficulty is present too.
Poor sleep, pain, an illness or a medicine may need attention alongside anxiety.
Anxiety improves but thinking does not.
Review the remaining difficulty rather than assuming that fewer panic attacks mean the whole problem has resolved.
Fear about symptoms leads to repeated checking.
The checking and the original symptom can both need a plan.
Sleep, pain and medicine effects can change at the same time as anxiety. Comparing their timing helps you describe what still needs attention.
Why can a task take more effort?
You may still get the answer right by slowing down, rereading or checking. A short test may miss how much longer the task now takes. Other people make more errors as well as taking longer. Anxiety research describes both, so “I can still do it” and “this takes much more effort” can both be true.
Describe that cost when you ask for help. “I now need an hour to read something that used to take ten minutes” says more than “my memory is bad.” Following a recipe, paying a bill or remembering a conversation can show the same difficulty.
Why stress can interrupt thinking
The prefrontal cortex helps you keep a goal in mind, resist distractions and change what you are doing. Stress changes chemical activity in this part of the brain. Arnsten's review brought together animal and human research on how those changes can disrupt working memory and flexible decisions.
Breathing can also change during anxiety. Breathing faster or more deeply than your body needs lowers carbon dioxide in the blood. Carbon dioxide helps control the width of blood vessels in the brain. In a laboratory study of 29 healthy people, anxiety altered the relationship between carbon dioxide and blood-flow speed. This helps explain why forced, very deep breathing may be unhelpful.
Is it forgetfulness or a detached feeling?
With depersonalization, you feel detached from yourself. With derealization, your surroundings feel unreal or unfamiliar. You may remember a conversation clearly while feeling that you were not fully part of it.
That differs from forgetting the conversation. It also differs from being unable to work out where you are. People describing depersonalization usually know that the experience feels strange.
A 2025 review found these experiences in anxiety, depression and psychosis research. Earlier clinical descriptions include onset after severe stress, panic or substance use. Describe whether you are forgetting information, feeling detached, or both. For persistent detachment, ask for an assessment by someone familiar with dissociation. Include any link with trauma or substance use.
How can you cope with health anxiety about brain fog?
Treatment for health anxiety can help reduce the fear that leads you to keep checking your symptoms. You might search for the same explanation, check your pulse or ask the same question again because the relief from the last answer did not last.
Notice what happens after a check. You may have enough information to take a useful action. Or you may feel safer briefly, then need to search or ask again without learning anything new.
CBT for health anxiety works on feared predictions and the checking or reassurance used to manage them. In a trial of 204 adults, a 12-week guided online program performed about as well as face-to-face CBT on the main health-anxiety measure. The online treatment included a therapist; this was not a test of any general health website or chatbot.
Agree what to do when a symptom changes
A care plan should say which changes need urgent help, which need a routine review and when to return if a symptom continues. That makes room for both proper medical follow-up and treatment of repeated checking.
You can say: “I keep searching and asking for reassurance, but the relief does not last. Can we agree what changes need medical attention and how I can work on the repeated checking?”
A supporter can help you use that plan without repeatedly debating the same feared diagnosis. The same plan should say how to respond to a new physical change.
What does the GAD-7 measure?
The GAD-7 asks about seven anxiety symptoms over the previous two weeks. Each answer scores from 0 to 3, giving a total from 0 to 21. The usual bands are 0–4 minimal, 5–9 mild, 10–14 moderate and 15–21 severe anxiety symptoms.
The score helps describe symptom severity and change over time. It does not test memory or the detached feeling described above. An assessment also considers distress, everyday function, other conditions and previous treatment.
The original validation involved 2,740 primary-care patients. A later review of 48 studies found that its screening accuracy varied across settings and populations. Someone with a low score may still need help for panic, detachment or another problem the questionnaire does not measure well.
Over the last 2 weeks, how often have you been bothered by the following? Answer all seven questions to record your anxiety symptoms.
How do you find out what is causing brain fog?
The questions below help you notice changes worth mentioning. The results list topics from your answers; there is no anxiety-versus-physical-illness score. Add dates and task examples to the notes you bring to the appointment.
1. Is your thinking or anxiety worse standing up and better lying down?
Describe what happens when you stand and what changes after lying down.
2. Does your heart also race at rest or after standing, at times when you feel calm?
Check what starts first and what you were doing. Heart rate, posture and anxious thoughts can overlap, so timing is more useful than the feeling alone.
3. Do you often feel unusually cold or struggle in the heat?
Temperature intolerance can occur with thyroid or autonomic problems. It matters more when other physical changes happen too.
4. Do thinking problems happen with flushing, gut symptoms or hives?
If skin, gut and thinking symptoms keep showing up together after the same trigger, describe them as one event.
5. Does your thinking change after meals or when you have not eaten?
Note the meal and timing. Include a glucose result if it was measured during the symptoms.
6. Did the anxiety and thinking problems begin over days or weeks?
A clear change from your usual self gives your doctor a date to work from. They can then look at illness, medicines and other changes around that time.
7. Did treatment help the worry more than it helped your thinking?
Describe what improved and which thinking problems remained.
8. Do you have unexplained weight changes, hair loss, or menstrual irregularity?
These changes can help decide whether thyroid, hormone, nutrition or other medical questions need a closer look.
9. Does caffeine bring on a pounding heart, shaking or tiredness later, as well as worse thinking?
Caffeine can worsen anxiety and physical symptoms. That response does not by itself identify anxiety or an autonomic condition.
10. Are there earlier blood-test results that still need to be reviewed?
No one set of tests fits everyone. Your history helps a clinician decide whether you need thyroid, blood count, iron, B12, glucose or other tests.
How is anxiety assessed?
An assessment considers when the brain fog began, what else changed and how daily life is affected. A short account of those changes is more useful than trying to monitor every sensation all day.
Include when the difficulty started, what it feels like and one or two tasks it affects. Mention whether it followed an illness, panic episode, medicine change or a period of poor sleep. If a clear difference keeps occurring, such as feeling worse upright and better lying down, include it.
Generalized anxiety disorder involves excessive worry about several parts of life, difficulty controlling the worry and symptoms lasting at least six months. Restlessness, fatigue, irritability, muscle tension, poor sleep and trouble concentrating are among the symptoms considered. Panic disorder, social anxiety and health anxiety involve different fears and may need different treatment.
The assessment includes how much distress the symptoms cause and what they stop you doing. It also considers medicines, substances and other health conditions. Feeling unreal or detached is worth describing separately, even when you have anxiety.
What happens before and after the symptoms?
Delayed worsening after activity.
With post-exertional malaise, even minor physical or mental activity can worsen symptoms 12–48 hours later, for days or longer. This occurs in ME/CFS and some people with Long COVID. Describe the delay and recovery time so the activity plan accounts for it. The timing alone doesn't diagnose the cause.
Skin and gut symptoms.
Describe repeated episodes of flushing, hives and gut symptoms together, including any apparent trigger. That combination needs a history of its own; a timeline answer cannot diagnose mast cell activation syndrome (MCAS) or an allergy.
Nutrition and blood loss.
Meals and glucose.
Low blood glucose can cause sweating, shaking, a rapid heartbeat and thinking problems. The diagnosis depends on finding low glucose during symptoms and improvement when it returns to normal. Feeling worse two or three hours after eating doesn't confirm that diagnosis.
Palpitations.
An ECG records the heart's electrical activity at the time of the test. Intermittent episodes may need longer recording. Describe whether the heartbeat changes start suddenly, occur while you feel calm or come with faintness, chest pain or breathlessness.
Other health changes to mention
Symptoms on standing.
Racing heart, dizziness or near-fainting that repeatedly worsen upright need heart-rate and blood-pressure assessment. POTS is one possible explanation. Its diagnosis uses the symptoms and measured changes together, including whether blood pressure falls substantially on standing. In a survey of 227 people from one pediatric POTS program, nearly three quarters reported a diagnostic delay and more than half had been told their symptoms were “in their head.” This was a selected group from one program. It shows why the history of standing symptoms deserves a careful hearing.
Thyroid symptoms.
New tremor, heat intolerance, unexplained weight change or palpitations can give thyroid testing a clear purpose. An underactive thyroid can also slow thinking and cause cold intolerance or constipation. A published case described hyperthyroidism being mistaken for anxiety; one case cannot tell us how often that happens. Include any change in thyroid medicine.
Sleep symptoms.
Loud snoring, witnessed breathing pauses, gasping at night or marked daytime sleepiness suggest a sleep assessment. Sleep apnea can affect concentration even when you also have anxiety.
Changes around menopause.
Changing periods, hot flushes, night sweats and disrupted sleep are relevant when anxiety or thinking problems are new. Describe the timing rather than treating the symptoms as unrelated complaints.
Long-standing attention problems.
Difficulties that began years before the current anxiety episode raise a different question from a recent change during panic or poor sleep. ADHD and anxiety can occur together.
What should you take to the appointment?
Bring your medicine and supplement list, previous results and a short treatment history. For each treatment, note what improved, what did not and any unwanted effects. Include caffeine, alcohol and other substances. The doctor handout has space to keep these details together.
Some changes are easy to overlook: a sleep aid or sedating antihistamine; a new stimulant dose; corticosteroid treatment; missed benzodiazepine doses; or a thyroid-medicine change. Record the date and the change you noticed. With cannabis, include whether panic or detachment followed use, a stronger product or a change in frequency.
A useful opening is: “My thinking changed around this time. These are the tasks affected. I would like to review anxiety, sleep, medicine effects and any other checks that fit the history.”
The PHQ-9 helps describe depression symptoms. Thyroid blood tests, sleep testing, standing measurements and heart-rhythm recording answer different questions. Choose them according to the history and examination, rather than ordering the same panel for everyone.
Finding care
United States.
Primary care can review the symptoms and treatment history, while a mental-health professional can assess the anxiety and offer therapy. When comparing services, ask whether they treat your kind of anxiety, what sessions include, the cost with your insurance and whether remote care is available.
England.
NHS Talking Therapies accepts self-referrals for anxiety and depression. You do not need an existing diagnosis. Services generally accept adults aged 18 or over; some accept people aged 16 or 17.
Australia.
Eligible people with a mental-health treatment plan can receive Medicare support for up to ten individual and ten group sessions in a calendar year. Referral and review steps apply, and there may still be a fee to pay. Ask the service about the actual gap payment before booking.
Healthcare guidance
APA Practice Guideline for Treatment of Anxiety Disorders
- •CBT is first-line treatment for all anxiety disorders
- •SSRIs and SNRIs are first-line pharmacotherapy
- •Benzodiazepines: short-term use only due to dependence risk
- •Exposure therapy is essential for phobias and panic disorder
Anxiety healthcare: United States
Where people usually start, what happens next, and common access barriers
Anxiety disorders are common and highly treatable. Understanding treatment options helps you access care.
Safety considerations
Driving
Severe anxiety, panic attacks or dissociation may affect driving. Some medicines make you drowsy at first. Drive only once strong symptoms have settled.
Work and occupational safety
Anxiety can hurt focus and productivity. You may qualify for reasonable adjustments like flexible hours, a quiet workspace or breaks to manage anxiety.
How does brain fog improve during recovery from anxiety?
There is no reliable study-based timetable for brain fog to clear after anxiety improves. Fewer panic attacks, less worry, clearer thinking and less detachment are different changes, so it helps to notice each separately.
Choose a few ordinary examples: following a conversation, reading a page, remembering an appointment or completing a task. Improvement may mean that you can do the same thing with less effort, not just that an anxiety score fell.
When anxiety is better but thinking is not
Review what remains. Worry or checking may still interrupt you even when panic is less frequent. Sleep may still be poor. A medicine may help anxiety while causing unwanted effects. A detached feeling may need a different assessment from a memory complaint.
Continue practical help with the tasks you find difficult while these questions are assessed. The guide to cognitive rehabilitation explains ways to practice everyday tasks and use reminders or other supports.
What long-term studies can tell us
A review of 13 long-term studies of GAD found mixed cognitive results rather than a simple, consistent decline. Other studies looked at which difficulty came first. In one, lower scores on some thinking tests predicted more anxiety nine years later. In another, increased worry preceded poorer performance on some tests at later follow-up.
A study spanning 18 years measured anxiety symptoms, blood signs of inflammation and executive functions: skills used to plan, switch tasks and control responses. People with more GAD symptoms tended to have higher inflammation about nine years later. Higher inflammation was linked to lower thinking-test scores another nine years after that.
In the researchers’ statistical model, inflammation accounted for about one fifth (19%) of the association between earlier anxiety and later thinking scores. The percentage describes part of that statistical relationship, not the share of people affected or the amount of memory they lost. The study did not test an anti-inflammatory treatment for brain fog.
These studies describe groups over many years. They cannot predict how quickly you will improve. At a treatment review, bring the symptoms and activities that have changed since the last visit.
How researchers came to understand anxiety and thinking problems
Claims about anxiety and thinking often come from studies that asked different questions. The history below shows what researchers tested, from learning in animals to people’s symptoms and daily thinking.
1898: naming depersonalization.
Ludovic Dugas introduced the term into clinical writing, drawing on descriptions in Henri-Frédéric Amiel's journal. Dugas and François Moutier later published a book on it in 1911. The experience was being described long before today's anxiety questionnaires.
1908: learning under pressure.
Yerkes and Dodson studied 40 mice learning to choose a light rather than a dark passage, using electric shocks of different strengths. Their results helped inspire later ideas about arousal and performance. The original experiment was not a test of how much stress a person needs to work well.
1990: cortisol and the hippocampus.
Sapolsky's team placed cortisol implants directly into the hippocampus, a brain region involved in memory, in four vervet monkeys. They later found injury in that region. This extreme animal experiment is often stretched into the claim that ordinary anxiety damages the human brain. It did not test that claim.
2000: measuring detachment.
Sierra and Berrios developed the 29-item Cambridge Depersonalization Scale to record the frequency and duration of symptoms over six months. It was initially tested in 35 people with depersonalization disorder, 22 with anxiety disorders and 20 with temporal-lobe epilepsy. It measures a different experience from the GAD-7.
2006: the GAD-7.
Spitzer and colleagues validated a short questionnaire in primary care. Seven questions made anxiety symptoms easier to record and compare, while an assessment still had to establish the diagnosis.
2009: explaining stress and working memory.
Arnsten reviewed how stress changes activity in the prefrontal cortex. This connected everyday difficulties with laboratory work on memory, attention and flexible decisions.
2015: clearer assessment of standing symptoms.
An expert consensus described postural orthostatic tachycardia syndrome (POTS) and related conditions using symptoms together with heart-rate and blood-pressure changes. POTS involves symptoms and a marked heart-rate rise on standing. It helped distinguish symptoms on standing from an assumption that a racing heart must be anxiety.
2023: testing brief breathing practice.
A month-long trial tested five minutes a day of breathing exercises. The benefits it measured were mood and breathing rate, adding practical detail to advice that had often just said “breathe deeply.”
2025: separating thinking skills.
Nguyen and colleagues combined 32 studies with 13,084 participants. Generalized anxiety disorder (GAD) was associated with poorer working memory and mental flexibility, but not every thinking skill differed. The details matter more than saying anxiety impairs the whole brain.
2025: listening to complaints as well as tests.
A review of reviews found only a small relationship between reported thinking difficulties and test scores across many conditions. A separate review examined depersonalization and derealization across mental-health diagnoses. Both developments support asking what a person actually experiences rather than assuming one score describes it all.
2026: following cognition over time.
A review of 13 long-term GAD studies found mixed results. Research has not established one course of cognitive decline or one timetable for recovery.
When to get urgent help
Get emergency help for sudden weakness on one side, a new problem speaking, severe confusion, a first seizure, collapse, severe chest pain or serious breathing difficulty. High fever with confusion, or a sudden major change after starting or stopping a medicine, also needs urgent assessment. Do not assume a new emergency symptom is anxiety because you have had panic attacks before.
If you may harm yourself or someone else, or cannot stay safe, get immediate help. In the United States, call or text 988. In the UK and Ireland, call Samaritans on 116 123. In Australia, call Lifeline on 13 11 14. Call your local emergency number if there is immediate danger.
Manage: I'm treating my anxiety but still have brain fog
What actually helps with anxiety?
Cognitive behavioral therapy and several medicines reduce anxiety symptoms; their benefits and side effects differ. CBT is a structured therapy that works on thoughts and habits through discussion and practice. The right plan depends on the anxiety problem, previous treatment and what you want to be able to do again.
Choose the problem you want help with. Each option explains its purpose, what the evidence measured and the practical details that can affect the choice.
Some options are for generalized anxiety disorder (GAD), which involves persistent worry. Others address panic, social anxiety or feeling detached from yourself or your surroundings. The detached experiences are called depersonalization and derealization, shortened to DPDR in this library.
Get emergency help for new severe chest pain, collapse, serious breathing difficulty, sudden weakness on one side, a new problem speaking or severe confusion. Get immediate help if you cannot keep yourself or someone else safe.
The basis field distinguishes treatment research, clinical guidance and practical advice. Timing says when to use an action or names the study or treatment period; it is not a promise of recovery. Cost symbols compare likely expense, from $ to $$$$; ask the provider for the actual price.
What is anxiety stopping you from doing right now?
My brain won't stop worryingPractice responding to repeated worry, and find treatment for it.
Three places to start
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Panic attacks leave me exhaustedUse a plan for familiar attacks and work on the fear of another one.
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I feel detached or unrealDescribe the detachment clearly and find a coping activity that helps.
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Physical symptoms keep convincing me something is wrongAgree on medical follow-up and work on repeated reassurance separately.
Three places to start
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Anxiety keeps me awakeGet help for ongoing insomnia and review other sleep symptoms.
Three places to start
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I keep watching for danger and cannot concentrateReduce interruptions and practice returning your attention to the task.
Three places to start
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I've tried CBT and it didn't help enoughReview what the therapy included and what the next approach would change.
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Medication helps but makes me tired, foggy, agitated or unlike myselfCompare the benefit with the unwanted effects at a medicine review.
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I've tried several treatments and I'm still severely anxiousBring a treatment history to a specialist review.
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I need to function at work or socially againPlan manageable steps and ask for practical changes that help you take them.
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See the full evidence library 84 options
No matching option.
Set aside time for worry
Do this
Choose a short time to write about your worries. When the same worry returns before then, note it and return to what you were doing.
Act on an urgent practical or safety problem when it happens.
Why, evidence and sources
Repeated worry can interrupt the same task many times.
Why
Postponing worry is a CBT exercise. It gives you a way to practice returning to a task instead of examining the same fear each time.
Basis: Exercise used in CBT · Timing: Practice: set an agreed time for worry · Cost: Free
Practice leaving a question unanswered
Do this
Write down one feared outcome, one useful action and one uncertainty you will leave unanswered today.
Use new information when it changes a real decision.
Why, evidence and sources
You may keep checking because an answer never feels certain enough.
Why
CBT and metacognitive therapy help people change how they respond to worry and uncertainty.
Basis: Practice used in therapy · Timing: Practice: during an ordinary low-risk uncertainty · Cost: Free
Choose CBT for persistent worry
Do this
Ask whether the program includes an explanation of your difficulties, exercises between sessions and ways to test feared predictions.
The review is about what treatment included, not how hard you tried.
Why, evidence and sources
CBT for generalized anxiety disorder works on repeated, hard-to-control worry.
Why
Trials and NICE guidance support structured CBT for GAD. A previous course of supportive conversation may have involved different methods.
Basis: Strong evidence · Timing: Typical course: 12–15 weekly sessions · Cost: $$
Recognize a familiar panic attack
Do this
For a familiar panic attack, remind yourself: 'This is panic.' Use your treatment plan and keep breathing gentle, without repeatedly forcing a large breath.
A first severe unexplained episode needs medical assessment. New severe chest pain, collapse or serious breathing difficulty needs emergency help.
Why, evidence and sources
Fear of a racing heart or dizziness can add to the distress of a familiar panic attack.
Why
Panic-focused CBT helps you examine what you fear the sensations mean.
Basis: Guideline supported · Timing: Use: during a familiar panic attack · Cost: Free
Reduce a panic-related checking habit
Do this
As part of planned CBT practice, choose one habit to reduce gradually and compare what happened with what you feared.
Keep medical precautions that apply to your condition.
Why, evidence and sources
You may repeatedly check your pulse or leave situations because you expect something terrible to happen.
Why
This lets you test the prediction instead of attributing every safe outcome to checking or escape.
Basis: Practice used in panic CBT · Timing: Practice: as agreed in panic treatment · Cost: Free
Practice facing panic-related fears
Do this
Plan manageable steps with your therapist and repeat them between sessions.
The exercises must account for medical conditions that limit which sensations you can safely bring on.
Why, evidence and sources
Panic-focused CBT includes practice with feared sensations and situations.
Why
Exposure gives you repeated opportunities to test what you fear will happen.
Basis: Strong evidence · Timing: Course: planned with the therapist · Cost: $$
Describe what is around you
Do this
Name things you can see and hear, then choose one ordinary activity such as making tea or talking to someone.
You do not need to keep testing whether the room feels real.
Why, evidence and sources
Naming things around you gives you a simple activity to do when you feel detached.
Why
This is an optional coping exercise. Judge it by whether it helps you continue your day.
Basis: Optional coping exercise · Timing: Use: when naming things around you helps · Cost: Free
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clinical guidance
Take a break from checking the detached feeling
Do this
Choose a period without symptom searches and do an ordinary activity during it.
Why, evidence and sources
Repeatedly searching for an explanation can use time you meant to spend on something else.
Why
The aim is to reduce time spent checking, not to make yourself prove that the feeling has disappeared.
Basis: Practical advice · Timing: Use: when checking is taking up your time · Cost: Free
Describe persistent detachment clearly
Do this
If detachment persists, ask for an assessment by someone familiar with dissociation. Explain when it began and whether panic, trauma or substance use occurred around the same time.
New disorientation or a major neurological change needs urgent assessment.
Why, evidence and sources
Remembering an event but feeling detached from it is different from forgetting the event.
Why
Depersonalization and derealization occur across several conditions. The description helps identify what needs treatment.
Basis: Evidence limited · Timing: Review: when detachment persists · Cost: Varies
Agree on a plan for changing symptoms
Do this
Agree which changes need urgent help, which need a routine appointment and when to review symptoms that continue.
Keep the plan available to anyone helping you.
Why, evidence and sources
A written follow-up plan can make the next step clear when symptoms change.
Why
A useful plan names the change, the action and the time for follow-up.
Basis: Guideline / clinical · Timing: Plan: before the next episode · Cost: Low
Reduce repeated reassurance requests
Do this
Choose one repeated search, pulse check or reassurance question to work on in treatment. Include repeated questions to an AI tool.
Keep agreed medical follow-up and act on the changes in your care plan.
Why, evidence and sources
The same reassurance may settle a fear briefly before you feel the need to ask again.
Why
CBT for health anxiety addresses checking and reassurance as well as the feared illness.
Basis: Practice used in health-anxiety CBT · Timing: Practice: as part of the agreed plan · Cost: Free
Use CBT for health anxiety
Do this
Look for treatment that works on your feared predictions and the things you do to feel certain.
The tested online program included therapist guidance.
Why, evidence and sources
Health-anxiety CBT addresses fear about illness and repeated checking.
Why
In a trial of 204 adults, 12 weeks of guided online CBT performed about as well as face-to-face CBT on the main health-anxiety measure.
Basis: Strong evidence · Timing: Study course: 12 weeks · Cost: $$
Keep a regular wake time
Do this
Choose a wake time that fits your responsibilities and use it consistently.
A sleep plan should account for shift work, marked daytime sleepiness and other sleep or mood conditions.
Why, evidence and sources
A regular wake time is one practical part of sleep treatment.
Why
CBT for insomnia also works on time awake in bed and worry about sleep. It involves more than a list of sleep tips.
Basis: Part of insomnia care · Timing: Routine: each morning · Cost: Free
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clinical guidance
Keep work and symptom searches out of bed
Do this
Write tomorrow’s task or your worry note before bed, and put the phone or work device aside.
Loud snoring, gasping and breathing pauses need a sleep-apnea assessment.
Why, evidence and sources
Work messages and symptom searches can leave you awake in bed.
Why
The practical aim is to stop spending bedtime working or checking.
Basis: Practical sleep support · Timing: Routine: before bed · Cost: Free
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clinical guidance
Treat ongoing insomnia
Do this
Use a structured program that addresses your sleep schedule, time awake in bed and thoughts about sleep.
Sleep apnea and restless legs require assessment for those problems too.
Why, evidence and sources
CBT for insomnia, often called CBT-I, treats difficulty falling or staying asleep.
Why
Better sleep is a worthwhile treatment goal even when anxiety also needs care.
Basis: Strong evidence · Timing: Course: depends on the program · Cost: $/$$
Do one task at a time
Do this
Turn off nonessential notifications, keep the current step visible and finish a short task before checking messages.
Why, evidence and sources
Interruptions make you restart and remember where you were.
Why
This is a practical way to reduce what you need to hold in mind while you work.
Basis: Cognition support · Timing: Use: during a difficult task · Cost: Free
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meta-analysis
Practice paying attention to the task
Do this
Choose a short period to listen to the speaker or notice the task in front of you, then practice returning when your attention shifts.
Why, evidence and sources
You may miss part of a conversation while watching yourself for signs of anxiety.
Why
Social-anxiety CBT includes work on self-focused attention and behavioral experiments.
Basis: Practice used in social-anxiety CBT · Timing: Practice: during the agreed activity · Cost: Free
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guideline
Review the thinking problems that remain
Do this
Describe which daily tasks remain hard and review the relevant sleep, medicine and physical-symptom history.
Tests should answer a specific question from that history.
Why, evidence and sources
Less anxiety does not necessarily mean every difficulty has improved.
Why
The remaining problem may need its own assessment or practical support.
Basis: Clinical assessment guidance · Timing: Review: when anxiety improves but thinking does not · Cost: Varies
Review what your CBT included
Do this
Review the goals, exercises, exposure where relevant, attendance and changes in daily life.
Treatment can be well delivered and still not help enough.
Why, evidence and sources
Different therapies can involve very different work between sessions.
Why
That record helps identify what has been tried and what another course would change.
Basis: Treatment review · Timing: Review: when treatment is not helping · Cost: Free
Review a therapy that is not helping
Do this
Discuss whether repeated worry, fear of worry or avoiding valued activities needs more direct work.
Why, evidence and sources
A change of approach should address a specific problem that remains.
Why
Three small trials comparing metacognitive therapy with CBT favored metacognitive therapy on worry and anxiety measures. Acceptance and commitment therapy, or ACT, is included in a broader group of approaches with evidence of anxiety benefit.
Basis: Promising / moderate · Timing: Course: agreed with the therapist · Cost: $$
Consider a combined treatment plan
Do this
Review the benefit, side effects and remaining disability before deciding what to add.
Adding treatment also adds appointments, practice or medicine effects to review.
Why, evidence and sources
Therapy and medication can be considered together when one treatment has helped only partly.
Why
NICE includes combination treatment in some partial-response and complex GAD situations. The evidence for combinations is more limited than for the individual treatments.
Basis: Guideline option after partial response · Timing: Review: after a partial treatment response · Cost: $$
Separate benefits from side effects
Do this
Write down what improved or worsened in your anxiety, sleep or thinking, and any other effects you noticed. Include when you took the medicine and its dose.
Use the review to plan changes; do not stop suddenly as a test.
Why, evidence and sources
A medicine can help worry while causing a different difficulty.
Why
A brief record gives the prescriber concrete examples to compare.
Basis: Practical treatment record · Timing: Record when you notice an improvement, worsening or new effect · Cost: Free
Review an unwanted medicine effect
Do this
Describe the benefit and the unwanted change, then ask whether timing, dose changes or another medicine would suit you better.
Make medicine changes through the prescribing plan.
Why, evidence and sources
Side effects are part of judging whether a medicine is helping overall.
Why
NICE recommends considering previous response, side effects, interactions and withdrawal when choosing treatment.
Basis: Clinical guidance · Timing: Review: when an unwanted effect appears · Cost: Low
Plan withdrawal from regular medication
Do this
Arrange a gradual, individual plan before reducing a medicine with withdrawal risk.
Abrupt benzodiazepine withdrawal can be dangerous.
Why, evidence and sources
Stopping some antidepressants or benzodiazepines suddenly can cause withdrawal.
Why
Withdrawal symptoms can resemble returning anxiety, so timing matters when reviewing what happened.
Basis: Guideline · Timing: Plan: before reducing or stopping · Cost: Low
Record what you have already tried
Do this
Record the therapy method, practice, medicine dose and duration, missed doses, benefits and reasons for stopping.
You do not have to endure an intolerable effect to complete a record.
Why, evidence and sources
The name of a treatment does not show how it was used or what happened.
Why
A useful review distinguishes no benefit from a treatment that helped but caused unacceptable effects.
Basis: Clinical guidance · Timing: Record: before the next treatment decision · Cost: Low
Make a plan after several treatments
Do this
Bring the treatment record to a specialist review and agree the purpose of the next step.
Why, evidence and sources
Persistent severe symptoms deserve a review of the diagnosis, previous treatments and other health problems.
Why
NICE describes specialist care for complex or treatment-resistant GAD.
Basis: Guideline · Timing: Review: after several treatments have not helped · Cost: $$$
Examine the evidence for newer treatments
Do this
Before choosing a newer treatment, compare its anxiety-specific results, costs and risks with the treatments you have already tried.
Why, evidence and sources
A newer treatment may have much less evidence for your particular problem.
Why
The brain-stimulation review contained eight GAD trials and 405 participants; estimates were imprecise. Studies of depression answer a different treatment question.
Basis: Early trials; treatment-specific evidence · Timing: Review: before choosing another treatment · Cost: $$$$
Return to an activity in manageable steps
Do this
Choose something you want to do at work or with other people. Break it into small steps you can practice during treatment.
Account for physical limits and address bullying or unsafe conditions directly.
Why, evidence and sources
You do not need to feel completely calm before attempting a planned activity.
Why
Exposure-based treatment uses practice to test feared outcomes and reduce avoidance.
Basis: CBT practice · Timing: Practice: manageable steps toward the chosen activity · Cost: Free
Ask for a specific change at work
Do this
Ask for clearer priorities, fewer simultaneous tasks, predictable hours or a period without interruptions.
The arrangement depends on your job and circumstances.
Why, evidence and sources
A concrete request is easier to act on than “less stress.”
Why
Workplace stress guidance identifies workload, control, support, relationships and role as practical areas to address.
Basis: Occupational guidance · Timing: Plan: before returning or when work is difficult · Cost: Low
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occupational guidance
Test a feared social prediction
Do this
Choose one manageable social situation, state what you fear will happen and plan how to test it.
The exercise should be agreed, respectful and safe.
Why, evidence and sources
Attending an event may leave your fear unchanged if you spend it hiding, rehearsing or repeatedly checking yourself.
Why
Social-anxiety CBT includes behavioral experiments or graduated exposure, with practice between sessions.
Basis: Practice used in social-anxiety CBT · Timing: Practice: as part of social-anxiety CBT · Cost: Free
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guideline
Individual CBT
Do this
Choose a structured approach suited to the anxiety problem you want to treat.
Why, evidence and sources
Individual CBT gives you time to work on the situations and habits involved in your anxiety.
Why
Reviews support anxiety-symptom improvement. The work usually includes practice between appointments.
Basis: Strong evidence · Timing: Course: agreed with the therapist · Cost: $$$
Group CBT
Do this
Ask about the program, group size, practice and total cost before choosing it.
A group is not automatically less expensive or the right setting for every person.
Why, evidence and sources
Group CBT offers structured treatment alongside other people with similar difficulties.
Why
A review of GAD treatment formats found group CBT better than waiting-list control on anxiety symptoms.
Basis: Moderate / strong · Timing: Course: depends on the program · Cost: $$
- (19)
network meta-analysis
Guided digital CBT
Do this
Check what the program teaches, who provides guidance and how progress is reviewed.
Why, evidence and sources
A structured online program can provide therapy exercises and therapist guidance.
Why
In the 204-person health-anxiety trial, guided online CBT had similar symptom results to face-to-face CBT and used less therapist time. That result concerns the tested program and diagnosis.
Basis: Evidence for specific guided programs · Timing: Study course: 12 weeks for guided health-anxiety CBT · Cost: $/$$
AI-supported CBT tools
Do this
Check whether the tool follows a tested program, who provides human support, how a crisis is handled and how your data is protected.
Severe symptoms or several overlapping problems need an assessment; selecting an app does not provide one.
Why, evidence and sources
AI-CBT studies have produced mixed results. A small trial found neither AI nor peer support presented as AI better than control in its main analysis.
Why
In a UK trial of 316 people, PATH reduced anxiety and depression scores more than an NHS self-help website at two weeks. More people missed the follow-up in the PATH group: 33.0%, compared with 18.5% in the website group. A broader review found significant anxiety improvement in only one of 14 relevant comparisons.
Basis: Emerging · Timing: PATH study: first outcome at two weeks · Cost: $/$$
Metacognitive therapy
Do this
Ask how the treatment would address the repeated thinking or checking that interrupts your day.
Three trials provide a smaller evidence base than the wider CBT literature.
Why, evidence and sources
Metacognitive therapy works on how you respond to worry, including worry about worrying.
Why
A review of three trials favored it over CBT on worry and anxiety measures.
Basis: Promising · Timing: Course: agreed with the therapist · Cost: $$$
Acceptance and commitment therapy
Do this
Identify an activity you have given up to avoid anxiety and discuss how to return to it.
Acceptance does not mean staying in an unsafe situation.
Why, evidence and sources
ACT helps you resume activities you value while learning to respond differently to difficult thoughts and feelings.
Why
Reviews find benefit for a group of approaches that includes ACT and mindfulness-based treatments. The pooled result is not an ACT-only estimate.
Basis: Moderate · Timing: Course: agreed with the therapist · Cost: $$
- (4)
meta-analysis
Structured mindfulness treatment
Do this
If choosing this approach, check that the program includes instruction and support rather than only videos.
If a practice increases distress, tell the teacher and adapt or stop that exercise.
Why, evidence and sources
Mindfulness-based stress reduction is a taught program with regular practice.
Why
In an eight-week trial involving 276 adults with anxiety disorders, MBSR performed about as well as escitalopram on the main clinical-severity measure.
Basis: Moderate · Timing: Study course: eight weeks · Cost: $/$$
- (10)
randomized trial
Applied relaxation
Do this
Use a structured course and practice the skill between sessions.
Why, evidence and sources
Applied relaxation teaches you to notice tension and practice relaxing in everyday situations.
Why
NICE lists applied relaxation alongside CBT as a high-intensity psychological option for GAD.
Basis: Moderate · Timing: Typical GAD course: 12–15 weekly sessions · Cost: Low
- (3)
guideline
Breathe gently when you feel panicky
Do this
Let your breathing stay comfortable; try a gentle longer out-breath if it helps. Stop the exercise if you feel worse.
Serious difficulty breathing needs medical help.
Why, evidence and sources
Repeated large breaths can add to tingling and lightheadedness.
Why
Slow breathing is included in anxiety self-management advice.
Basis: Supportive · Timing: Use: when breathing is uncomfortable during panic · Cost: Free
Heart-rate-variability biofeedback
Do this
Before paying, ask what the program teaches and which outcome it has been shown to improve.
Use it only if the feedback helps rather than prompts more checking.
Why, evidence and sources
Biofeedback shows bodily measurements while you practice a skill such as paced breathing.
Why
An improved device reading and improved daily anxiety are different outcomes.
Basis: Limited biofeedback studies · Timing: Training: length varies by program · Cost: $$
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government research overview
SSRI antidepressants
Do this
Discuss previous response, sleep, sexual effects, other medicines and your preferences when choosing one.
Plan any later reduction because withdrawal can follow stopping.
Why, evidence and sources
SSRIs are antidepressants commonly used for GAD and panic disorder. Sertraline is one example.
Why
NICE includes SSRIs in its medication pathway. Benefits build over time; agitation or sleep disturbance can occur early.
Basis: Strong evidence · Timing: Benefit: usually takes several weeks · Cost: $
SNRI antidepressants
Do this
Review the expected benefit and likely effects with the prescriber, including any other condition the medicine is intended to treat.
Nausea, agitation, blood-pressure effects and withdrawal can affect the choice.
Why, evidence and sources
SNRIs are another group of antidepressants. Venlafaxine and duloxetine have evidence for treating GAD.
Why
Trials mainly measure anxiety symptoms and whether people continue treatment.
Basis: Strong evidence · Timing: Benefit: usually takes several weeks · Cost: $
Pregabalin
Do this
Discuss whether its likely benefit suits your symptoms and previous treatment experience.
Sleepiness, dizziness, dependence and withdrawal matter when thinking is already difficult.
Why, evidence and sources
Pregabalin is an option for some people with GAD who cannot tolerate an SSRI or SNRI.
Why
This is the place it occupies in NICE’s GAD pathway.
Basis: Moderate to strong · Timing: Use: regular prescribed treatment · Cost: $
Buspirone
Do this
Ask when its effect will be reviewed and which symptoms the treatment is intended to change.
Its uses differ from those of a fast-acting benzodiazepine.
Why, evidence and sources
Buspirone is used for GAD and is taken regularly rather than for immediate relief during an attack.
Why
NIMH describes three to four weeks before its full effect. The trial evidence for this drug family is mainly short term.
Basis: Moderate · Timing: Full effect: may take three to four weeks · Cost: $
Hydroxyzine
Do this
Ask how the prescribed schedule fits work, driving and other medicines that make you sleepy.
Drowsiness, dizziness or confusion can be a reason to review its effects.
Why, evidence and sources
Hydroxyzine is used for anxiety and can cause drowsiness.
Why
Five older trials found anxiety benefit, but the review identified a high risk of bias.
Basis: Low to moderate · Timing: Use: according to the prescription · Cost: $
Beta blockers
Do this
Discuss the particular physical symptom you want to treat.
Propranolol can cause dizziness, tiredness and sleep problems.
Why, evidence and sources
Propranolol can reduce physical symptoms such as a racing heart, sweating and shaking.
Why
A review found no clear benefit for the social-phobia and panic-disorder outcomes it examined. Reducing a physical symptom is a different goal.
Basis: Low for core anxiety · Timing: Physical effects: within hours for propranolol · Cost: $
Benzodiazepines
Do this
Agree the purpose, duration and review plan when one is prescribed.
Regular use can lead to dependence. Do not stop abruptly; withdrawal can be dangerous.
Why, evidence and sources
Benzodiazepines can relieve anxiety quickly. They can also cause sedation and memory problems, with higher risks of falls and road accidents.
Why
NICE limits benzodiazepines for GAD to short-term crisis use.
Basis: Strong acute effect, poor long-term strategy · Timing: GAD use: short-term crises · Cost: $
Choose manageable activity
Do this
Choose activity you can manage and notice how you feel afterward as well as during it.
If exertion causes delayed worsening, use a plan that accounts for that rather than increasing activity on a fixed schedule.
Why, evidence and sources
Physical activity can support sleep and mood alongside anxiety treatment.
Why
WHO includes regular activity in anxiety self-care.
Basis: Moderate adjunct · Timing: Activity: paced to what you can manage · Cost: Free
Check caffeine timing and amount
Do this
Count the caffeine you use, including energy drinks, and reduce gradually if you want to test whether it is contributing.
Sudden reduction can cause withdrawal symptoms, including headache and fatigue.
Why, evidence and sources
Caffeine can add to trembling, palpitations and difficulty sleeping.
Why
Compare sleep and anxiety before and after the change.
Basis: Caffeine challenge studies; individual response varies · Timing: Change: reduce gradually and note what happens · Cost: Low
Review alcohol-related anxiety
Do this
Notice whether difficult mornings follow drinking and include the amount in a treatment review.
Withdrawal after heavy regular drinking can be dangerous and needs medical support.
Why, evidence and sources
Alcohol may briefly reduce tension while disrupting sleep or leaving you more anxious later.
Why
Alcohol use changes how anxiety and sleep need to be assessed.
Basis: Clinical guidance · Timing: Review: timing around use or withdrawal · Cost: Varies
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guideline
Check whether cannabis worsens symptoms
Do this
If symptoms began or worsened after cannabis, record the product and timing for your assessment.
A report from another user cannot predict your response to THC or CBD.
Why, evidence and sources
Cannabis use appears among reported triggers for depersonalization.
Why
The link in your history matters when deciding what to investigate.
Basis: Clinical reports and guidance · Timing: Review: timing around use or a product change · Cost: Varies
Check signs of sleep apnea
Do this
Report loud snoring, witnessed breathing pauses or waking while gasping.
Use the Sleep Apnea guide for the assessment and treatment details.
Why, evidence and sources
Sleep apnea can cause daytime tiredness and difficulty concentrating.
Why
Sleep testing checks breathing during sleep and can often take place at home.
Basis: Clinical assessment guidance · Timing: Review: when sleep symptoms suggest apnea · Cost: Varies
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clinical guidance
Describe symptoms that change on standing
Do this
Describe the difference between lying down and standing, including heat or shower-related symptoms.
Anxiety and a posture-related condition can occur together.
Why, evidence and sources
Racing heart and near-fainting that worsen upright need a posture-related assessment.
Why
Heart-rate and blood-pressure measurements help assess orthostatic intolerance, which means difficulty tolerating an upright position.
Basis: Clinical consensus · Timing: Review: when symptoms repeatedly worsen upright · Cost: Varies
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expert consensus
Check symptoms around the menopause transition
Do this
Describe changes in periods, hot flushes, night sweats and sleep alongside the thinking problem.
Why, evidence and sources
Changing periods, hot flushes, night sweats and disrupted sleep can occur around the time anxiety or thinking problems begin.
Why
The Menopause guide explains the relevant assessment and support.
Basis: Clinical guidance · Timing: Review: when anxiety or thinking changes around menopause · Cost: Varies
- (26)
clinical resource
Use tests to answer a specific question
Do this
Review relevant symptoms, diet, blood loss, medicines and previous results before choosing tests.
Why, evidence and sources
Anemia, B12 deficiency and thyroid disease can affect energy or thinking.
Why
Different tests answer different questions; a long panel is not a diagnosis.
Basis: Clinical assessment guidance · Timing: Testing: when the history gives a reason · Cost: Varies
Virtual-reality exposure
Do this
Ask whether the program treats your particular fear and includes a plan for practice outside the headset.
Compare the full program and cost before paying.
Why, evidence and sources
Virtual reality can be used to present situations during exposure therapy.
Why
A review of 17 randomized trials in social anxiety found better symptom results than waiting for treatment, and similar results to other interventions. The treatment involved facing feared situations; a relaxation scene alone is a different activity.
Basis: Evidence for social-anxiety programs · Timing: Course: depends on the tested program · Cost: $$$
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meta-analysis
Transcranial magnetic stimulation
Do this
Ask which anxiety condition the proposed course treats and how its results compare with established options.
Why, evidence and sources
TMS uses magnetic stimulation delivered during treatment sessions.
Why
A review of brain stimulation for GAD included eight trials and 405 participants. Repetitive TMS was the most studied method; estimates of its benefits were imprecise. The review doesn't show that TMS helps thinking recover or has a routine place in NICE’s GAD treatment pathway.
Basis: Emerging · Timing: Course: depends on the proposed protocol · Cost: $$$$
Transcranial direct-current stimulation
Do this
Ask for anxiety-specific controlled trials of the proposed protocol before considering a course or home device.
Do not transfer a result from a depression study to anxiety.
Why, evidence and sources
tDCS applies a small electrical current through electrodes on the scalp.
Why
NICE’s established GAD pathway describes CBT, applied relaxation and medication; it does not recommend a tDCS course.
Basis: Emerging · Timing: Course: depends on the proposed protocol · Cost: $$$
Neurofeedback
Do this
Ask for controlled anxiety studies of the exact program, including how it compared with a credible control.
Why, evidence and sources
Neurofeedback uses feedback from recorded brain activity during training.
Why
A review of biofeedback methods found better anxiety results than waiting for treatment, but no clear advantage over active comparisons. Most studies were rated weak; the review could not separate the specific training effect from other parts of treatment.
Basis: Weak · Timing: Training: depends on the program · Cost: $$$$
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systematic review
Consumer vagus-nerve devices
Do this
Ask for randomized anxiety trials of the exact device and the outcome you want to improve.
Why, evidence and sources
Non-invasive vagus-nerve devices stimulate through the skin, often at the neck or ear.
Why
Research is still working out which settings and methods help particular conditions. Results from an implanted device don't show that a consumer device treats anxiety.
Basis: Weak / emerging · Timing: Use: depends on the exact device · Cost: $$$
- (58)
government guidance
Magnesium
Do this
Separate treating a confirmed deficiency from buying magnesium to treat anxiety.
Kidney disease and medicine interactions need to be considered before supplementation.
Why, evidence and sources
Magnesium studies report mixed anxiety results.
Why
A 2024 review found small studies using different doses, forms and sometimes other active ingredients, making the results hard to compare.
Basis: Low · Timing: Studies: courses and products vary · Cost: Low
Oral lavender: Silexan
Do this
Check that the product and intended use match the evidence rather than assuming any lavender oil has the same effect.
Why, evidence and sources
Silexan is a specific oral lavender preparation tested for anxiety.
Why
Five placebo-controlled trials involving 1,213 adults found anxiety improvement after ten weeks. The research included manufacturer involvement.
Basis: Low to moderate · Timing: Placebo-controlled studies: ten weeks · Cost: $$
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meta-analysis
Ashwagandha
Do this
Consider the specific product and the reason for taking it, including other medicines and health conditions.
Avoid it during pregnancy or breastfeeding. Thyroid disease, liver-injury reports and medicine interactions are important reasons to review its suitability.
Why, evidence and sources
Ashwagandha studies have tested stress and anxiety symptoms using different extracts.
Why
A review of nine trials found improvements in stress and anxiety scores; small, varied studies leave uncertainty about the size of benefit.
Basis: Low · Timing: Studies: short courses; long-term safety uncertain · Cost: $$
L-theanine
Do this
Distinguish a short attention-test result in healthy adults from treatment of ongoing GAD or brain fog.
Why, evidence and sources
L-theanine has not shown a consistent anxiety benefit.
Why
A 2026 review found some short-term attention benefit in healthy adults. In a separate 46-person GAD trial, L-theanine did not beat placebo on anxiety or cognitive tests. The GAD trial found improvement on a self-rated sleep-satisfaction item, not overall insomnia severity.
Basis: Low · Timing: GAD add-on trial: eight weeks · Cost: Low
Omega-3
Do this
Decide separately whether you need a nutritional supplement and whether you expect it to treat anxiety.
Why, evidence and sources
Omega-3 results differ between anxiety studies.
Why
A 2024 review found possible anxiety benefit with low or very low certainty. A review of longer trials found little or no preventive benefit.
Basis: Low · Timing: Studies: courses and formulations vary · Cost: Low
Probiotics
Do this
Check whether a product matches the formulation used in a relevant trial.
Why, evidence and sources
Probiotic trials have tested different strains and combinations.
Why
A review of clinical samples found reduced anxiety scores across nine probiotic trials, with substantial differences between studies. That combined result doesn't show that any personalized commercial program will work.
Basis: Weak · Timing: Studies: courses and strains vary · Cost: $$
- (53)
meta-analysis
Wearables and daily scores
Do this
Use the device for a specific practical purpose and review whether it helps you act or mainly makes you check again.
Why, evidence and sources
A sleep or heart-rate score can become another thing to check repeatedly.
Why
A device score is different from an assessment of anxiety or daily functioning.
Basis: Practical advice · Timing: Use: when a reading changes a useful decision · Cost: $$$
- (2)
guideline
Ask what private treatment provides
Do this
Ask which condition is treated, what the program includes and what the trials measured. Find out who monitors side effects, what happens if treatment causes harm or does not help, and the full cost.
Why, evidence and sources
Paying more does not by itself establish that a treatment works.
Why
These answers let you compare the service with established options and your previous care.
Basis: Practical questions before purchase · Timing: Ask: before paying · Cost: Varies
Check which condition the ketamine evidence covers
Do this
Ask for evidence for the exact formulation and anxiety condition being treated.
Clarify the supervision, monitoring and full cost before considering a service.
Why, evidence and sources
Ketamine and esketamine are different treatments with different uses and oversight.
Why
A result in depression doesn't prove the same result for GAD or panic disorder.
Basis: Insufficient for routine anxiety · Timing: Review: before considering treatment · Cost: $$$$
- (29)
regulatory
Agree how to respond to repeated reassurance requests
Do this
Agree a supportive response and refer back to the care plan instead of repeatedly debating the same feared diagnosis.
Act on genuinely changed symptoms and emergencies.
Why, evidence and sources
A supporter may answer the same fear many times without giving lasting relief.
Why
Health-anxiety treatment can include changing reassurance habits while preserving practical and emotional support.
Basis: Health-anxiety CBT practice · Timing: Plan: before responding to the next request · Cost: Free
Keep a plan for returning symptoms
Do this
Write down your early signs, the practices that helped and when you would seek another treatment review.
Why, evidence and sources
Useful skills can become harder to use when anxiety rises again.
Why
Keep the plan short enough to use without constantly monitoring yourself.
Basis: Clinical guidance · Timing: Plan: while treatment is helping · Cost: Free
Notice what you can do in daily life
Do this
Note whether following a conversation, completing work or traveling gets easier or harder. Use examples from your own day.
Why, evidence and sources
An anxiety score can improve while work or concentration stays difficult.
Why
These examples add information that an anxiety questionnaire does not measure.
Basis: Clinical guidance · Timing: Review: at agreed follow-up points · Cost: Free
- (2)
guideline
Ask for company or practical help
Do this
Ask for a specific kind of help that makes the day easier.
Why, evidence and sources
Support can mean sitting together or sharing a task as well as talking about anxiety.
Why
You can keep that support while working on repeated requests for certainty.
Basis: Practical support advice · Timing: Use: when practical help or company would help · Cost: Free
- (2)
guideline
Change a grounding exercise that feels worse
Do this
Stop and try a different activity, such as making tea, talking to someone or listening to music.
Why, evidence and sources
You do not have to keep doing an exercise that increases your distress.
Why
Judge the activity by whether it helps you continue, not whether it proves the symptoms have gone.
Basis: Optional coping choice · Timing: Use: if grounding feels worse · Cost: Free
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clinical guidance
Choose something other than breath practice
Do this
Put the exercise aside and focus on a simple task or something around you.
Serious breathing difficulty needs medical help.
Why, evidence and sources
Trying to take a perfect breath can become another repeated check.
Why
Breathing practice is optional; forcing it is not a treatment goal.
Basis: Optional coping choice · Timing: Use: if breath practice feels worse · Cost: Free
- (25)
clinical guidance
Finish work before getting into bed
Do this
Choose a work cut-off where possible and write tomorrow’s first task before you finish work and stop checking work messages.
Why, evidence and sources
Checking work messages in bed leaves less time for sleep.
Why
The purpose is practical: keep bedtime available for sleep.
Basis: Sleep-care advice · Timing: Routine: before bed · Cost: Free
Keep a short record of a panic episode
Do this
Note the situation, symptoms, what you feared, what you did and what happened next.
Stop once the useful details are recorded.
Why, evidence and sources
A brief record can help you discuss what happened without replaying it all day.
Why
Bring recurring details to panic-focused treatment or a medicine review.
Basis: Practical appointment notes · Timing: Record: a few useful episodes · Cost: Free
Record substance use around the onset of detachment
Do this
Include cannabis and other substances, the product if known, and when symptoms began.
Why, evidence and sources
The timing of substance use is part of assessing a detached or unreal feeling.
Why
Clinical descriptions include substance-related onset as well as other routes to depersonalization.
Basis: Clinical assessment guidance · Timing: Record: around the start of detachment · Cost: Varies
Treat insomnia alongside night panic
Do this
Describe the attack itself and the difficulty sleeping between attacks.
Gasping, breathing pauses or marked daytime sleepiness also need a sleep assessment.
Why, evidence and sources
Night panic and ongoing insomnia can both need attention.
Why
Panic-focused treatment and CBT for insomnia address different problems.
Basis: Clinical assessment guidance · Timing: Review: when insomnia and night panic occur together · Cost: Varies
Name the symptom you want treatment to change
Do this
Describe the situation and the physical symptoms when discussing a medicine.
Asthma, a slow pulse or low blood pressure can make propranolol unsuitable. These conditions matter before prescribing it.
Why, evidence and sources
Less shaking during a presentation and less worry throughout the day are different goals.
Why
Propranolol can affect physical symptoms without addressing every part of an anxiety disorder.
Basis: Guidance on propranolol · Timing: Use: for the named physical symptom · Cost: $
Review more than the session count
Do this
Review the treatment method, practice, goals and changes in daily life when deciding whether to continue or adapt therapy.
Why, evidence and sources
More therapy sessions do not automatically mean a larger benefit.
Why
A 2026 analysis of 41 studies and 1,607 adults did not find that course duration or number of sessions predicted greater benefit. Longer individual sessions had a separate association with improvement. The study does not prescribe the right number or length of sessions for one person.
Basis: Study-level association; not a dose rule · Timing: Review: the complete therapy course · Cost: Varies
- (6)
meta-analysis
Ask how a CBT approach will help
Do this
Ask how the proposed method addresses your particular difficulties and what you will practice.
Why, evidence and sources
CBT approaches differ in the thoughts, habits and exercises they emphasize.
Why
A 2026 review found symptom improvement across several GAD CBT models; it did not establish one model as the best long-term choice.
Basis: Review of CBT models · Timing: Ask: before choosing or changing therapy · Cost: $$
- (5)
meta-analysis
Review how remote CBT is working
Do this
If progress is limited, review what has been practiced and whether more therapist contact or another format would help.
Why, evidence and sources
A GAD review grouped remote programs together; therapist contact was mostly by email.
Why
Its analysis combining direct and indirect comparisons favored individual CBT. Direct comparisons alone found no clear difference. These results should not be treated as a test of one-to-one video therapy.
Basis: Mixed findings by comparison method · Timing: Review: when progress is limited · Cost: $/$$
- (19)
network meta-analysis
Limit repeated health reassurance from AI
Do this
Use it for a defined task such as organizing notes, then stop asking for repeated confirmation that a symptom is harmless.
Check the tool’s privacy arrangements before entering personal health details.
Why, evidence and sources
An AI tool can answer the same health question indefinitely.
Why
Current AI-CBT trials have mixed anxiety results. A general chatbot is also different from a tested treatment program.
Basis: Practical advice informed by early trials · Timing: Use: when AI reassurance becomes repetitive · Cost: $/$$
Questions people actually ask
What actually stops constant worry?
CBT for generalized anxiety works on repeated worry and the habits used to manage it. Metacognitive therapy is another option with a smaller trial base.
What do I do during a panic attack?
For a familiar panic attack, use the steps in your treatment plan and keep breathing gentle. New severe chest pain, collapse or serious breathing difficulty needs urgent help.
Why does grounding make me more anxious?
There may not be a clear reason. If grounding makes you more distressed, stop and try an ordinary activity or a conversation instead.
Why do breathing exercises make me feel worse?
Large repeated breaths can lower carbon dioxide and add to tingling or lightheadedness. Let your breathing stay comfortable, or choose a task that does not involve watching it.
Does DPDR ever improve?
Yes, people can improve or recover. Talking therapy can help with coping and managing episodes; associated anxiety, depression or trauma may also need treatment. Research has not established one recovery timetable or a treatment that works for everyone.
How do I stop Googling symptoms?
Agree which symptom changes need medical attention. Then work on reducing repeated searches that only reassure you briefly, using health-anxiety CBT if needed.
Which anxiety medicine is least likely to cause brain fog?
There is no dependable ranking for everyone. Compare anxiety relief with changes in sleepiness, memory, sleep or emotion after starting a medicine or changing its dose.
Does pregabalin help or just sedate you?
It can reduce GAD symptoms and can also cause sleepiness or dizziness. Record the benefit and unwanted effects separately.
Does buspirone actually work?
Buspirone has evidence for GAD and is taken regularly. Full benefit may take three to four weeks; it is not an as-needed panic medicine.
Are benzodiazepines ever reasonable?
They can relieve acute anxiety quickly. NICE limits their use for GAD to short-term crises because sedation, memory problems, dependence and withdrawal matter.
What if CBT failed?
Review what the therapy included, what you practiced, what changed and what got in the way. Then decide what a different approach or added treatment would address.
Can fixing sleep reduce anxiety?
Yes, treating insomnia can also reduce anxiety symptoms. In a review of digital CBT for insomnia, 18 trials found a small average anxiety benefit. Ongoing anxiety may still need its own treatment.
Are TMS, ketamine or vagus devices worth paying for?
Ask for controlled trials of the exact treatment and anxiety diagnosis. Evidence for these options is less established than for CBT and standard medicines, and depression results do not answer the anxiety question.
Can anxiety cause permanent brain fog?
Long-term studies do not show one consistent course of cognitive decline in GAD. Persistent problems need their own assessment; there is no reliable timetable for brain fog to clear.
How do I work or socialize again?
Choose a meaningful goal, plan manageable steps and ask for specific adjustments. You can practice during treatment without waiting to feel completely calm.
Is AI therapy worth using?
Findings are mixed. PATH reduced anxiety scores more than an NHS self-help website in one trial, while a broader review found an anxiety benefit in only one of 14 relevant comparisons. A general chatbot is different from a tested treatment program.
Compare treatment evidence, costs, appointments and side effects
| Option | Evidence | Best fit | Burden | Keep in mind |
|---|---|---|---|---|
| CBT suited to the anxiety problem | Strong for established protocols | GAD, panic, social anxiety or health anxiety | Appointments and practice | The exercises differ by diagnosis. |
| SSRIs | Strong for several anxiety disorders | When medicine is appropriate | Sleep, sexual effects, early agitation and withdrawal | Review the benefit and unwanted effects separately. |
| SNRIs | Strong for GAD | An alternative medicine option | Nausea, blood-pressure effects and withdrawal | Choice depends on previous response and other medicines. |
| Metacognitive therapy | Promising; smaller trial base | Persistent worry and beliefs about worry | Access to a trained therapist | Three comparative trials are less evidence than the wider CBT literature. |
| ACT or structured mindfulness | Evidence differs by approach | Returning to activities or practicing a taught mindfulness method | Regular practice | ACT and MBSR are different treatments. |
| Pregabalin | Evidence for GAD | Some people unable to tolerate an SSRI or SNRI | Dizziness, sleepiness, dependence and withdrawal | NICE places it after SSRI/SNRI intolerance. |
| Buspirone | Mainly older, short trials | GAD | Regular doses; several weeks for effect | It is not an as-needed panic treatment. |
| Benzodiazepines | Rapid anxiety relief | Short-term crisis use in GAD | Sedation, memory effects, dependence and withdrawal | Agree the duration and review plan. |
| Guided digital CBT | Evidence for specific programs | Remote access to structured therapy | Practice and program quality | Check the diagnosis treated and who provides guidance. |
| AI-supported CBT | Mixed, emerging evidence | A defined tool with known study results | Privacy, inconsistent results and repeated reassurance | General chatbots differ from tested programs. |
| TMS | Small GAD trial base | A specialist discussion after reviewing established options | Repeated visits, cost and uncertain protocols | A depression result is not an anxiety result. |
| Supplements and wearables | Varies by product and purpose | A specific nutritional or practical need | Cost, interactions and extra monitoring | Check the exact product, outcome and evidence. |
In a corrected review of 65 trials involving 5,048 people with GAD, CBT and related approaches improved anxiety symptoms compared with usual care. CBT also retained a benefit in the longer follow-up comparisons. Ask about both anxiety and everyday thinking at follow-up: the trials mainly measured anxiety symptoms.
What do studies of six supplements show?
The studies below tested different products and outcomes. None establishes a reliable treatment for anxiety-related brain fog. The amounts given are study details, not personal dosing instructions.
L-theanine.
A 2026 review of 31 trials found some short-term attention benefits, mainly in healthy adults; anxiety results were inconsistent. In a separate trial of 46 people with GAD already taking an antidepressant, 450–900 mg of added L-theanine did not beat placebo for anxiety or the cognitive tests. Some sleep-satisfaction results improved.
Ashwagandha.
A 2024 review of nine trials, involving 558 people, found lower stress and anxiety scores. Four trials reported mild or moderate unwanted effects, and the short studies leave long-term safety uncertain. Products and extracts differ, so the findings do not establish that any KSM-66 product will have the same effect. Ashwagandha can affect the thyroid, interact with medicines and has been linked to liver injury. Avoid it in pregnancy; thyroid or autoimmune disease also changes whether it is suitable.
Magnesium.
A 2024 review found 15 studies of sleep or anxiety. Five of seven studies measuring anxiety reported some improvement, but small samples, different formulas and added ingredients made the results difficult to compare. Correcting a deficiency has a clearer purpose than taking magnesium as an assumed brain-fog cure. Too much supplemental magnesium can cause diarrhea. Poor kidney function increases the risk of a harmful build-up.
Silexan.
The evidence concerns a standardized oral lavender-oil product, not lavender scent or aromatherapy. Five placebo-controlled trials, involving 1,213 adults, tested 80 mg daily for ten weeks and found improved anxiety scores. A separate 539-person GAD trial tested 80 mg and 160 mg alongside paroxetine and placebo. Both Silexan groups beat placebo for anxiety; the trial did not establish a memory advantage over paroxetine. A six-week comparison with lorazepam also measured anxiety. Much of this research has manufacturer involvement.
Omega-3 fatty acids.
Results depend on which people and trials are included. A 2024 review of 23 trials, involving 2,189 people, suggested an anxiety benefit but rated the evidence very uncertain. An earlier review of longer trials found little or no benefit for preventing anxiety. Neither result establishes an EPA-dominant formula or a brain-fog dose. High doses and blood-thinning medicines require an interaction check.
Phosphatidylserine.
A trial in 75 healthy men tested a phosphatidylserine-and-phosphatidic-acid product for 42 days. One dose changed stress-hormone responses in a high-stress subgroup, but reported stress did not improve.
Supplement combinations to check
Have a pharmacist or prescriber check the exact products before adding them to an antidepressant or buspirone. St John's wort, 5-HTP and L-tryptophan can add to serotonin effects; some combinations can cause the potentially life-threatening illness serotonin syndrome. MAOIs and tramadol also matter in this check. Avoid combining kava or valerian with alcohol or other sedatives. Include supplements on the same list as prescription medicines, sleep aids and antihistamines.
What can help with everyday tasks?
During brain fog, fewer interruptions and written reminders can make daily tasks easier to manage. Put the next step somewhere visible, ask for important information in writing and give yourself time to finish one thing before starting another.
Make a difficult moment more manageable
Move somewhere quieter if you can. Reduce the number of choices in front of you. Ask someone for a specific task, such as writing down the appointment details or helping prepare food. If you have missed a meal or need a drink, attend to that ordinary need without assuming it explains every symptom.
You can try the grounding exercise by naming things around you. It is a way to direct attention to a concrete task. You can skip the breathing part or stop the exercise if it increases distress.
What do common self-help suggestions offer?
Caffeine.
Include coffee, tea, energy drinks and caffeine tablets when you check the amount and timing. If you reduce it, do so gradually: withdrawal can cause headache and fatigue. In nine high-dose challenge studies, 51.1% of 237 people with panic disorder had a panic attack after caffeine, compared with none after placebo. The doses were 400–750 mg, usually about 480 mg. That result cannot tell you what a small coffee will do, but it gives people with panic a reason to examine caffeine use.
Sleep.
Breathing.
A study compared five minutes a day of breathing exercises with mindfulness practice over a month. Breathing practice, especially a method with a prolonged out-breath, improved mood and reduced breathing rate. Those were the measured benefits; the study did not test recovery from brain fog. The cyclic-sighing exercise used a second inhale after the first, followed by a long, slow exhale. Keep breathing comfortable and stop if you become dizzy, breathless or more distressed. The slow-breathing guide offers a simpler pace without a breath hold.
Cold water on the face.
A small physiology study found that cooling the face could slow the heart rate. It did not test whether this treated anxiety or brain fog. A change in heart rate is not the same as symptom recovery.
Activity.
Choose movement you can manage or a small activity you care about. Judge it by how you feel afterward as well as during it. Delayed worsening after exertion needs a different plan from simply increasing activity each week.
Meals.
Make a practical plan to avoid unintentionally missing meals. Keep food available when cooking is difficult. If symptoms keep following meals or fasting, record a few examples for the assessment instead of repeatedly testing or eating to chase every sensation.
Symptoms on standing.
If standing repeatedly brings on a racing heart or faintness, arrange an assessment that includes heart rate and blood pressure. Stop an observation if you feel faint; a home standing exercise is not required to earn a review.
Change one useful thing at a time when possible. Keep only the notes that help you decide whether to continue the change.
Could anxiety medication be causing brain fog?
Some anxiety medicines can make you sleepy or affect memory even while they reduce worry or panic. Describe the benefit and the unwanted change separately so they can both be considered at the medicine review.
Compare the timing
Did the thinking difficulty begin after starting a medicine, changing the dose or adding another substance that makes you sleepy? Does it vary around the time you take it? Include sleep aids, antihistamines, alcohol and cannabis where relevant.
Keep the note focused on the change you actually noticed. Useful examples include “I panic less, but now fall asleep during afternoon work” or “I started losing track of conversations after the dose changed.”
What each medicine can affect
Benzodiazepines
Hydroxyzine
can cause drowsiness and dizziness. Other medicines or alcohol that make you sleepy also matter.
SSRIs and SNRIs
can affect sleep, cause early agitation or leave some people feeling emotionally flat. Feeling less emotion and forgetting information are different complaints. In a study of 66 healthy volunteers, escitalopram affected sensitivity to rewards but did not cause a broad decline across the other cognitive tests. That result does not tell us the rate of unwanted effects in people being treated for anxiety.
Paroxetine
has anticholinergic effects, meaning it blocks some actions of the chemical acetylcholine. Dry mouth, constipation or blurred vision may be relevant to a review, especially in an older adult. The supporting research includes a mouse study and reports of suspected side effects, so it cannot provide a personal risk percentage.
There is no dependable ranking from “best” to “worst” for everyone's concentration. Compare the particular benefit you get with the sleepiness, memory change or other effect you want to address.
Plan changes instead of stopping as a test
Some antidepressants and benzodiazepines cause withdrawal when reduced too quickly. Withdrawal can include symptoms that resemble returning anxiety. Agree how to change the medicine and when to review the result, rather than abruptly stopping to see whether thinking improves.
How do you choose the right treatment?
For GAD, NICE describes high-intensity CBT as usually 12–15 weekly sessions. The treatment includes practice between appointments. Panic-focused CBT may work on fear of bodily sensations and situations you avoid. Social-anxiety treatment uses planned practice in feared social situations. Health-anxiety CBT addresses frightening interpretations, repeated checking and reassurance.
If earlier CBT helped little, review what it included, how much you were able to practice and what prevented progress. A 2026 review of 41 studies, involving 1,607 people, found no simple relationship between improvement and the total number of sessions or weeks. More sessions alone are not an explanation or a plan.
Trauma-focused CBT and EMDR are treatments for trauma-related problems such as PTSD. A history of trauma or detachment calls for assessment; it does not automatically make EMDR the treatment for any kind of anxiety.
SSRIs and SNRIs are two groups of antidepressants also used to treat anxiety. They usually take several weeks to work. Buspirone is taken regularly and may take three to four weeks to reach its full effect; it is not an as-needed treatment for a panic attack. Pregabalin is an option for some people with GAD who cannot tolerate an SSRI or SNRI. Treatment choice includes previous benefit, side effects, other medicines and the anxiety diagnosis.
Grounding when you feel detached or overwhelmed
Name things you can see, feel, hear, smell and taste. The breathing exercise afterward is optional. You can skip it or stop if you feel dizzy, breathless or more distressed.
The grounding exercise is a coping activity. The small study linked here tested the immediate effects of 4-7-8 breathing on heart rate and blood pressure in healthy young adults; it did not test brain fog. Study
Optional slow breathing guide
Use the moving circle to slow your breathing before a work period or difficult conversation. Breathe comfortably, at normal depth. End the exercise if you feel dizzy, panicky, breathless or in pain.
There is no reliable study-based timetable for brain fog to clear after anxiety improves. Fewer panic attacks, less worry, clearer thinking and less detachment are different changes, so it helps to notice each separately.
Choose a few ordinary examples: following a conversation, reading a page, remembering an appointment or completing a task. Improvement may mean that you can do the same thing with less effort, not just that an anxiety score fell.
When anxiety is better but thinking is not
Review what remains. Worry or checking may still interrupt you even when panic is less frequent. Sleep may still be poor. A medicine may help anxiety while causing unwanted effects. A detached feeling may need a different assessment from a memory complaint.
Continue practical help with the tasks you find difficult while these questions are assessed. The guide to cognitive rehabilitation explains ways to practice everyday tasks and use reminders or other supports.
What long-term studies can tell us
A review of 13 long-term studies of GAD found mixed cognitive results rather than a simple, consistent decline. Other studies looked at which difficulty came first. In one, lower scores on some thinking tests predicted more anxiety nine years later. In another, increased worry preceded poorer performance on some tests at later follow-up.
A study spanning 18 years measured anxiety symptoms, blood signs of inflammation and executive functions: skills used to plan, switch tasks and control responses. People with more GAD symptoms tended to have higher inflammation about nine years later. Higher inflammation was linked to lower thinking-test scores another nine years after that.
In the researchers’ statistical model, inflammation accounted for about one fifth (19%) of the association between earlier anxiety and later thinking scores. The percentage describes part of that statistical relationship, not the share of people affected or the amount of memory they lost. The study did not test an anti-inflammatory treatment for brain fog.
These studies describe groups over many years. They cannot predict how quickly you will improve. At a treatment review, bring the symptoms and activities that have changed since the last visit.
How researchers came to understand anxiety and thinking problems
Claims about anxiety and thinking often come from studies that asked different questions. The history below shows what researchers tested, from learning in animals to people’s symptoms and daily thinking.
1898: naming depersonalization.
Ludovic Dugas introduced the term into clinical writing, drawing on descriptions in Henri-Frédéric Amiel's journal. Dugas and François Moutier later published a book on it in 1911. The experience was being described long before today's anxiety questionnaires.
1908: learning under pressure.
Yerkes and Dodson studied 40 mice learning to choose a light rather than a dark passage, using electric shocks of different strengths. Their results helped inspire later ideas about arousal and performance. The original experiment was not a test of how much stress a person needs to work well.
1990: cortisol and the hippocampus.
Sapolsky's team placed cortisol implants directly into the hippocampus, a brain region involved in memory, in four vervet monkeys. They later found injury in that region. This extreme animal experiment is often stretched into the claim that ordinary anxiety damages the human brain. It did not test that claim.
2000: measuring detachment.
Sierra and Berrios developed the 29-item Cambridge Depersonalization Scale to record the frequency and duration of symptoms over six months. It was initially tested in 35 people with depersonalization disorder, 22 with anxiety disorders and 20 with temporal-lobe epilepsy. It measures a different experience from the GAD-7.
2006: the GAD-7.
Spitzer and colleagues validated a short questionnaire in primary care. Seven questions made anxiety symptoms easier to record and compare, while an assessment still had to establish the diagnosis.
2009: explaining stress and working memory.
Arnsten reviewed how stress changes activity in the prefrontal cortex. This connected everyday difficulties with laboratory work on memory, attention and flexible decisions.
2015: clearer assessment of standing symptoms.
An expert consensus described postural orthostatic tachycardia syndrome (POTS) and related conditions using symptoms together with heart-rate and blood-pressure changes. POTS involves symptoms and a marked heart-rate rise on standing. It helped distinguish symptoms on standing from an assumption that a racing heart must be anxiety.
2023: testing brief breathing practice.
A month-long trial tested five minutes a day of breathing exercises. The benefits it measured were mood and breathing rate, adding practical detail to advice that had often just said “breathe deeply.”
2025: separating thinking skills.
Nguyen and colleagues combined 32 studies with 13,084 participants. Generalized anxiety disorder (GAD) was associated with poorer working memory and mental flexibility, but not every thinking skill differed. The details matter more than saying anxiety impairs the whole brain.
2025: listening to complaints as well as tests.
A review of reviews found only a small relationship between reported thinking difficulties and test scores across many conditions. A separate review examined depersonalization and derealization across mental-health diagnoses. Both developments support asking what a person actually experiences rather than assuming one score describes it all.
2026: following cognition over time.
A review of 13 long-term GAD studies found mixed results. Research has not established one course of cognitive decline or one timetable for recovery.
When to get urgent help
Get emergency help for sudden weakness on one side, a new problem speaking, severe confusion, a first seizure, collapse, severe chest pain or serious breathing difficulty. High fever with confusion, or a sudden major change after starting or stopping a medicine, also needs urgent assessment. Do not assume a new emergency symptom is anxiety because you have had panic attacks before.
If you may harm yourself or someone else, or cannot stay safe, get immediate help. In the United States, call or text 988. In the UK and Ireland, call Samaritans on 116 123. In Australia, call Lifeline on 13 11 14. Call your local emergency number if there is immediate danger.
Support: I'm helping someone with anxiety
What brain fog may look like from the outside
Offer specific help, allow time for answers and ask what the person finds useful. A pause, a forgotten detail or a need to hear something again may reflect difficulty concentrating rather than a lack of interest.
What can you say?
“Would you like me to write that down?” or “Shall we go somewhere quieter?” is easier to answer than a long list of possible help. Give one piece of information at a time when the person is struggling to follow a conversation. Ask before taking over a task.
What can you do today?
You can help with an ordinary job, make food together, provide transport or sit with them while they complete something. If they want support at an appointment, help organize the dates and examples without replacing their account with your interpretation.
How can you help someone return to ordinary activities?
Ask what they want to resume and what small step would be useful. Offer company or practical help without forcing an activity, humiliating them or promising it will cure the anxiety. Account for any physical limits as well as the fear involved.
How can you respond to fear without debating it all day?
Acknowledge the distress: “I can see this is frightening.” If you have agreed a plan for familiar symptoms, help the person use it. Repeatedly proving that the same feared illness is absent may give only short relief.
A plan also needs room for real changes. New symptoms, a clear loss of function or a different course may need a fresh review. Supporting treatment for health anxiety should not mean dismissing every physical complaint.
How can you keep room for your own needs?
Say what help you can offer and when. You can care about someone without being available for repeated reassurance at every hour. Share the practical work where possible and make use of other support. Agreeing a limit is easier when it is paired with a clear alternative, such as the next planned check-in or the existing care plan.
How researchers came to understand anxiety and thinking problems
Claims about anxiety and thinking often come from studies that asked different questions. The history below shows what researchers tested, from learning in animals to people’s symptoms and daily thinking.
1898: naming depersonalization.
Ludovic Dugas introduced the term into clinical writing, drawing on descriptions in Henri-Frédéric Amiel's journal. Dugas and François Moutier later published a book on it in 1911. The experience was being described long before today's anxiety questionnaires.
1908: learning under pressure.
Yerkes and Dodson studied 40 mice learning to choose a light rather than a dark passage, using electric shocks of different strengths. Their results helped inspire later ideas about arousal and performance. The original experiment was not a test of how much stress a person needs to work well.
1990: cortisol and the hippocampus.
Sapolsky's team placed cortisol implants directly into the hippocampus, a brain region involved in memory, in four vervet monkeys. They later found injury in that region. This extreme animal experiment is often stretched into the claim that ordinary anxiety damages the human brain. It did not test that claim.
2000: measuring detachment.
Sierra and Berrios developed the 29-item Cambridge Depersonalization Scale to record the frequency and duration of symptoms over six months. It was initially tested in 35 people with depersonalization disorder, 22 with anxiety disorders and 20 with temporal-lobe epilepsy. It measures a different experience from the GAD-7.
2006: the GAD-7.
Spitzer and colleagues validated a short questionnaire in primary care. Seven questions made anxiety symptoms easier to record and compare, while an assessment still had to establish the diagnosis.
2009: explaining stress and working memory.
Arnsten reviewed how stress changes activity in the prefrontal cortex. This connected everyday difficulties with laboratory work on memory, attention and flexible decisions.
2015: clearer assessment of standing symptoms.
An expert consensus described postural orthostatic tachycardia syndrome (POTS) and related conditions using symptoms together with heart-rate and blood-pressure changes. POTS involves symptoms and a marked heart-rate rise on standing. It helped distinguish symptoms on standing from an assumption that a racing heart must be anxiety.
2023: testing brief breathing practice.
A month-long trial tested five minutes a day of breathing exercises. The benefits it measured were mood and breathing rate, adding practical detail to advice that had often just said “breathe deeply.”
2025: separating thinking skills.
Nguyen and colleagues combined 32 studies with 13,084 participants. Generalized anxiety disorder (GAD) was associated with poorer working memory and mental flexibility, but not every thinking skill differed. The details matter more than saying anxiety impairs the whole brain.
2025: listening to complaints as well as tests.
A review of reviews found only a small relationship between reported thinking difficulties and test scores across many conditions. A separate review examined depersonalization and derealization across mental-health diagnoses. Both developments support asking what a person actually experiences rather than assuming one score describes it all.
2026: following cognition over time.
A review of 13 long-term GAD studies found mixed results. Research has not established one course of cognitive decline or one timetable for recovery.
When to get urgent help
Get emergency help for sudden weakness on one side, a new problem speaking, severe confusion, a first seizure, collapse, severe chest pain or serious breathing difficulty. High fever with confusion, or a sudden major change after starting or stopping a medicine, also needs urgent assessment. Do not assume a new emergency symptom is anxiety because you have had panic attacks before.
If you may harm yourself or someone else, or cannot stay safe, get immediate help. In the United States, call or text 988. In the UK and Ireland, call Samaritans on 116 123. In Australia, call Lifeline on 13 11 14. Call your local emergency number if there is immediate danger.
References
- WHO mhGAP anxiety recommendations
- WHO: anxiety disorders
- NICE CG113: GAD and panic disorder in adults
- Papola et al. psychotherapy network meta-analysis
- Borthwick et al. 2026 CBT model meta-analysis
- Whittington et al. 2026 GAD psychotherapy dose-response meta-analysis
- Müller et al. 2026 anxiolytic drug network meta-analysis
- Slee et al. GAD pharmacotherapy network meta-analysis
- Metacognitive therapy vs CBT meta-analysis
- MBSR vs escitalopram randomized trial
- Pregabalin 2025 meta-analysis
- Buspirone / azapirone review
- Hydroxyzine review
- Beta blockers for anxiety disorders systematic review
- ASAM joint benzodiazepine tapering guideline 2025
- AI-enabled GAD intervention RCT, 2026
- AI-delivered CBT systematic review, 2026
- Huang: AI-labelled and human peer-support trial
- CBT delivery format network meta-analysis
- Blended CBT for panic and agoraphobia pilot RCT
- GAD executive functioning systematic review and meta-analysis
- NIMH generalized anxiety disorder overview
- NHS generalized anxiety disorder
- NHS panic disorder
- NHS Inform panic self-help guide
- British Menopause Society 2026 cognitive tool
- NIH iron fact sheet
- HSE workplace stress standards
- FDA compounding risk alerts
- Mayo Clinic anxiety overview
- 2025 network meta-analysis of non-invasive brain stimulation for GAD
- Internet CBT versus face-to-face CBT for health anxiety
- Online symptom searching and health anxiety meta-analysis
- Černis: depersonalisation and derealisation across mental-health conditions
- Depersonalization-derealization treatment review
- NICE CG159: individual CBT for social anxiety
- NIMH: mental-health medicines
- MedlinePlus: hydroxyzine
- NHS: propranolol for anxiety symptoms
- NHS: sleep apnoea
- Heart Rhythm Society consensus on POTS
- Simeon: clinical descriptions of depersonalisation
- Friedemann Smith: safety-netting advice
- Rawji: magnesium, anxiety and sleep review
- NIH: magnesium safety and interactions
- Dold: Silexan placebo-controlled trials
- Arumugam: ashwagandha trials
- NCCIH: ashwagandha safety
- Gerolymos: L-theanine trials
- Sarris: L-theanine added to GAD treatment
- Bafkar: omega-3 and anxiety symptoms
- Deane: omega-3 in longer prevention trials
- Asad: probiotic trials in clinical samples
- Lachner: B12 deficiency in older adults
- NHS: insomnia
- HSE: management standards for work stress
- NHS: dissociative disorders
- NIMH: brain stimulation therapies
- Tolin et al. 2020: biofeedback and neurofeedback for anxiety
- Tan et al.: virtual-reality exposure for social anxiety
- NCCIH: stress and biofeedback research
- Moran: anxiety and working memory
- Eysenck et al.: attentional control theory
- Arnsten: stress and the prefrontal cortex
- Anxiety, carbon dioxide and cerebral blood-flow velocity
- Spitzer et al.: validation of the GAD-7
- Aktürk et al.: GAD-7 and GAD-2 diagnostic accuracy
- Boris et al.: diagnostic delay in a paediatric POTS cohort
- NHS: underactive thyroid
- NHS: overactive thyroid symptoms
- CDC: managing post-exertional malaise in ME/CFS
- CDC: Long COVID clinical guidance
- Cryer et al.: evaluation and management of hypoglycaemia
- NHS: heart palpitations
- NHS: self-referral for talking therapies
- Healthdirect: mental-health treatment plans
- Klevebrant and Frick: caffeine and panic attacks
- Balban et al.: brief structured breathing practices
- Natelson et al.: roles of stress and temperature in the diving reflex
- NICE NG116: treatment of PTSD
- Kasper et al.: Silexan, paroxetine and placebo in GAD
- Woelk and Schläfke: Silexan and lorazepam in GAD
- Hellhammer et al.: phosphatidylserine, phosphatidic acid and stress responses
- NCCIH: St John's wort
- Memorial Sloan Kettering: 5-HTP
- NHS Greater Glasgow and Clyde: serotonin syndrome
- NCCIH: kava
- NCCIH: valerian
- Langley et al.: escitalopram and cognition in healthy volunteers
- Fujishiro et al.: anticholinergic effects in mice
- Chan et al.: antidepressant adverse-event reports
- Li et al.: longitudinal studies of GAD and cognition
- Zainal and Newman: cognition predicting later GAD
- Zainal and Newman: worry and later executive-function change
- Zainal and Newman: anxiety, inflammation and executive function over 18 years
- Sierra and Berrios: historical development of depersonalisation
- Yerkes and Dodson: original 1908 learning experiment
- Sapolsky et al.: cortisol exposure in vervet monkeys
- Sierra and Berrios: Cambridge Depersonalization Scale
- Cambridge Depersonalization Scale factor study: 29-item instrument
- Van Patten et al.: subjective and objective cognition umbrella review
- 988 Suicide and Crisis Lifeline
- Samaritans: contact a Samaritan
- Lifeline Australia: crisis support
- Vierra et al.: immediate effects of 4-7-8 breathing in healthy adults
- Molloy et al.: diagnostic overshadowing systematic review
- Rhodes et al.: continuity of care and patient experience
- Sheriff et al.: hyperthyroidism initially mistaken for anxiety
- NHS: when a seizure needs an ambulance
- Lee et al.: digital CBT for insomnia and anxiety symptoms
- NHS: who can take propranolol
- USPSTF: screening for anxiety in adults
- USPSTF: screening for anxiety in children and adolescents
- NHLBI: sleep studies
- NHS: electrocardiogram
- Kroenke, Spitzer and Williams: the PHQ-9
- NIMH: ADHD in adults
- AAAAI: mast cell activation syndrome
- NICE CG113: GAD and panic disorder in adultsPapola et al. psychotherapy network meta-analysis