Generalized Anxiety Disorder (GAD): Symptoms and Treatment

Quick answer

Chronic worry most days for 6 months; CBT and SSRIs work

GAD is diagnosed when a person has excessive anxiety and worry about several areas of life, more days than not for at least six months, that is hard to control and accompanied by at least three of: restlessness, fatigue, difficulty concentrating, irritability, muscle tension and sleep disturbance. About 3–6% of people have GAD at some point. Cognitive behavioural therapy is the most effective psychological treatment, and SSRIs or SNRIs are first-line medicines. Exercise, sleep, reduced caffeine and relaxation help.

Important. Depression, thoughts of self-harm, substance misuse or severe distress alongside anxiety need prompt help. If you are in crisis or thinking about harming yourself, seek help right away: in the US call or text 988, in the UK call Samaritans on 116 123, in Spain call 024, or call your local emergency number.

What is generalized anxiety disorder?

Everyone worries, but in GAD the worry is excessive, uncontrollable and out of proportion to the actual risk, and it shifts from one concern to another: health, work, money, family, minor everyday matters. People with GAD describe being “always on edge” and expecting the worst, and the worry leaves them exhausted. It differs from panic disorder (sudden attacks) and social anxiety (fear of social situations) and often coexists with depression and other anxiety disorders.

Symptoms

Persistent worry that is difficult to control.
Restlessness or feeling keyed up or on edge.
Fatigue and being easily tired.
Difficulty concentrating or mind going blank.
Irritability.
Muscle tension, aches and headaches.
Sleep problems: trouble falling or staying asleep, unrefreshing sleep.
Physical symptoms: sweating, trembling, nausea, palpitations, stomach upset.
Symptoms cause significant distress or impairment and are not due to a substance or another medical condition.

How GAD is diagnosed

A doctor or mental health professional will ask about symptoms, how long they have been present, how they affect your life, and your medical, medication and substance history. Questionnaires such as the GAD-7 help screen and measure severity (a score of 10 or more suggests probable GAD). Physical causes of anxiety, such as thyroid disease, anaemia, heart rhythm problems, caffeine or medication effects, are excluded. See test de ansiedad (Spanish).

Causes and risk factors

Family history of anxiety or depression (genetic factors).
Temperament: shyness, behavioural inhibition or high sensitivity.
Early adverse experiences, trauma or chronic stress.
Intolerance of uncertainty and a tendency to over-estimate threat.
Other mental health conditions, chronic illness or pain.
Substance use: caffeine, alcohol, cannabis, stimulants.
Female sex and life transitions increase vulnerability.

Psychological treatment: CBT

CBT for GAD helps you understand the cycle of worry, identify and test anxious predictions, tolerate uncertainty, reduce unhelpful safety behaviours (such as constant checking and reassurance-seeking), solve problems and relax. It typically takes 12–16 sessions, has long-lasting benefits and is recommended as a first-line treatment by NICE and other bodies. Applied relaxation and acceptance-based therapies are alternatives. Guided self-help and online CBT programmes are also effective for mild to moderate symptoms.

Medication

SSRIs (such as sertraline, escitalopram) and SNRIs (such as duloxetine, venlafaxine) are first-line; benefits begin after 2–4 weeks and full effect may take 8–12 weeks.
Pregabalin and buspirone are alternatives.
Benzodiazepines relieve anxiety quickly but are for short-term use only (2–4 weeks) because of tolerance, dependence and side effects.
Beta-blockers may help physical symptoms in some situations.
Never stop antidepressants suddenly; ask your doctor about tapering.
Medication and therapy together may help people with severe symptoms.

Self-help strategies

Exercise regularly: 30 minutes of moderate activity most days reduces anxiety.
Prioritise sleep and keep a regular routine.
Limit caffeine, alcohol and nicotine.
Schedule “worry time” (15–20 minutes) and postpone worries to that time.
Practise relaxation: slow breathing, muscle relaxation and mindfulness. See deep breathing for anxiety.
Face fears gradually rather than avoiding.
Stay connected and talk to people you trust.
Use a worry journal to separate problems you can solve from those you cannot.

Outlook

GAD tends to be chronic and fluctuating, but with treatment most people improve substantially, and many reach remission. Relapses occur, especially during stress, so maintenance of skills and early help are valuable. Treating coexisting depression, sleep problems and substance use improves outcomes.

When to see a doctor

Worry that is hard to control and lasts for weeks.
Anxiety that affects work, relationships or sleep.
Physical symptoms that worry you.
Low mood, loss of interest or thoughts of self-harm.
Use of alcohol or drugs to cope.
A child or teenager showing persistent excessive worry.

Three common situations

Constant worry about health, work and family, with muscle tension and poor sleep for over six months: consistent with GAD; seek assessment and CBT.

Anxiety about a major exam for a few weeks: a normal stress response; practise coping skills and seek help if it persists.

Anxiety that worsens after starting a medicine or heavy coffee intake: review with a doctor; substances can cause symptoms.

Supporting someone with GAD

If someone you love has GAD, listen without trying to “fix” every worry, avoid constant reassurance (which can keep the cycle going), encourage them to seek treatment and to use their coping skills, and look after your own wellbeing. Praise progress, however small, and be patient: recovery is gradual. Offer to attend an appointment if they would like company.

Key points to remember

GAD is common, real and treatable. CBT and medication are effective, and self-care strategies support recovery. Seek help early. Our psychology team offers evidence-based treatment for anxiety.

This guide is for general information and does not replace an assessment by a qualified health professional.

Questions about generalized anxiety disorder

These answers are general information and do not replace an examination or individual medical advice.

What is the difference between normal worry and GAD?

GAD worry is excessive, hard to control, present most days for six months and impairs daily life.

How is GAD treated?

CBT and medications such as SSRIs or SNRIs are the main treatments, with lifestyle changes.

Is GAD a lifelong condition?

It can be chronic and fluctuating, but many people recover or manage well with treatment.

How long does CBT for GAD take?

Typically 12–16 sessions, though shorter courses can help milder cases.

Can I treat GAD without medication?

Yes, many people improve with CBT and lifestyle changes alone.

Does GAD cause physical symptoms?

Yes: muscle tension, headaches, fatigue, stomach upset and sleep problems are common.

Can GAD occur in children?

Yes. Children may worry about school, family or health and show stomach aches, irritability and sleep problems; CBT works well in young people.

Sources

This guide is for general information and does not replace medical advice. How a problem is diagnosed and treated depends on your examination and medical history. If you think you have an emergency, contact your local emergency services.