Cognitive Behaviour Therapy

Overview

Cognitive behaviour therapy — usually called CBT — is a type of talking therapy. It looks at how your thoughts, feelings and actions are connected, and how they can get stuck in a loop that keeps you feeling low, worried or unwell. 'Cognitive' simply means thinking. 'Behaviour' means what you do. In CBT you work with a trained therapist to notice unhelpful patterns, test them out, and slowly build new ways of thinking and acting that help you feel better. It is usually a short course of sessions rather than open-ended therapy, and you play an active part — often with small tasks to try between sessions.

Yes. CBT is one of the most widely offered talking therapies worldwide, and most people who seek help for anxiety or depression are offered it or a related therapy. It is available in many forms — one-to-one, in groups, by phone or video, and through guided self-help programmes, including online courses with a supporter checking in.

CBT can help people of any age, background or gender. It is used with children (often with parents involved), teenagers, working-age adults and older adults. It can be adapted for people with physical health conditions, learning differences, or limited literacy, and for people who prefer not to talk at length about the past.

Symptoms

Common symptoms

• CBT is not a treatment for one single illness — it helps with patterns of distress. You might recognise some of these:
• Persistent low mood, loss of interest, or feeling hopeless much of the day
• Constant worry that is hard to switch off, or feeling 'on edge' most of the time
• Panic attacks — sudden intense fear with a racing heart, shortness of breath, dizziness or shaking
• Strong fears of specific situations (such as social situations, flying, or leaving home) that you start to avoid
• Unwanted intrusive thoughts or repeated actions you feel you must do to feel safe
• Distressing memories, nightmares or feeling numb after a traumatic event
• Trouble sleeping, or lying awake worrying
• Low confidence, harsh self-criticism, or feeling like a failure
• Physical symptoms linked to stress, such as tension headaches, stomach upset or fatigue
• Using alcohol or other substances to cope with difficult feelings

Symptoms in children

• Children often show distress through behaviour rather than words — for example, clinginess, tantrums, or refusing to go to school
• Stomach aches or headaches with no clear physical cause, especially before school or social events
• Worry that seems out of proportion, or needing lots of reassurance
• Withdrawal from friends, or loss of interest in play and hobbies
• Sleep problems, nightmares, or needing a parent nearby at bedtime
• In CBT for children, parents or carers are usually involved, and sessions are adapted to the child's age using drawings, stories and play

Symptoms in older adults

• Low mood that can be mistaken for 'just part of ageing', or that shows up as physical complaints
• Anxiety about health, falling, memory, or money
• Grief and loneliness after losing a partner, friends or independence
• CBT is adapted for older adults — for example, shorter sessions, larger print materials, or sessions at home or by phone
• Memory or hearing difficulties are not a barrier: therapists adjust how the work is done so it still makes sense

Causes

Main causes

• CBT does not suggest that you are to blame for your difficulties, or that it is 'all in your mind'. It works from a simple idea: thoughts, feelings, body sensations and actions all affect each other.
• For example, if you think 'I'll mess this up', you may feel anxious, notice a racing heart, and then avoid the situation. Avoiding brings short-term relief but teaches your brain the situation really is dangerous — so the fear grows.
• Difficult or traumatic life events, ongoing stress, physical illness, and patterns learned in childhood can all shape these loops.
• Sometimes there is no obvious cause — the loop simply started and kept itself going. That is common and does not mean the problem is not real.

Risk factors

• Long-term stress at work, at home, or with money
• Past trauma, abuse, or a difficult childhood
• Physical health problems, chronic pain or a new diagnosis
• Loneliness or losing someone close
• A tendency to be very self-critical or to worry a lot
• Family history of anxiety or depression
• Heavy alcohol use or drug use
• Big life changes such as moving, becoming a parent, or retiring

When to see a doctor

See a doctor urgently if:

• You have thoughts of harming yourself or someone else — seek help immediately using your local emergency number or a crisis line
• You feel unable to keep yourself safe
• Panic or anxiety is so severe you cannot function day to day
• You have stopped eating or sleeping almost completely
• You are using alcohol or drugs heavily to cope

Book a routine appointment if:

• Low mood, worry or anxiety has lasted more than a couple of weeks and is affecting your work, study, relationships or sleep
• You are avoiding things you used to do because of fear
• You feel stuck in patterns you cannot break on your own
• You want to understand what CBT involves and whether it might suit you
• You are supporting a child or relative who seems distressed — you can ask for advice on their behalf

Diagnosis

There is no single test that 'diagnoses' CBT — rather, a doctor or therapist first works out what is troubling you, and then you decide together whether CBT is a good fit. Your doctor or a therapist will ask about your feelings, thoughts, daily life, sleep, physical health, and what you would like to be different. They may use short questionnaires that score things like anxiety or low mood, and repeat them later to see how you are doing. With your permission they may also speak to someone close to you. Your doctor will also check whether a physical problem — such as a thyroid issue or low iron — could be adding to your symptoms. Then you and your therapist build a shared understanding of your problem, sometimes called a 'formulation', which guides the work.

Tests that may be done

• A conversation about your symptoms, history and goals
• Standard questionnaires that measure mood and anxiety, repeated over time
• A review of your physical health and any medicines you take
• Blood tests only if a physical cause needs ruling out — not routinely for CBT itself
• Your own diary of thoughts, feelings and situations, if you agree to keep one

What to expect at your appointment

Expect a friendly, practical conversation rather than an interrogation. The first session is mostly about understanding your situation and what you hope to change. You can ask questions, say if something does not feel right, and take your time. You should be told roughly how many sessions are planned, what will happen in them, and how to change therapist if the fit is not right for you.

Treatment

CBT is the treatment itself, and it is usually delivered as a structured course of sessions. Sessions are often weekly at first, then spaced out. In each session you and your therapist look at what has happened since you last met, learn a new skill or idea, and plan something small to try before the next time. CBT is often offered alongside other support — such as advice on sleep, exercise or alcohol — and your doctor will help you decide what combination is right for you. If you are already taking medicine for anxiety or low mood, do not stop it on your own; discuss any changes with your prescriber.

Self-care at home

• Try a guided self-help book or an online CBT course based on the same principles — your doctor or library can suggest trusted options
• Keep a simple thought diary: what happened, what went through your mind, how you felt, what you did
• Break avoidance into small steps — for example, a short walk to the shop before a longer trip
• Protect your sleep: regular wake-up time, less screen time before bed, no caffeine late in the day
• Move your body most days — even a 10-minute walk counts
• Cut back on alcohol, which worsens anxiety and low mood over time
• Tell someone you trust that you are working on this, so they can support you
• Be kind to yourself when you slip — setbacks are part of learning, not proof of failure

Medical treatments

The main treatment is a course of CBT with a trained therapist. It can be delivered one-to-one, in a group, by phone or video, or through a supported online programme. Alongside CBT, doctors sometimes suggest other talking therapies, such as counselling or interpersonal therapy, depending on what suits you. Medicines for anxiety or low mood are sometimes used too — your doctor can explain the benefits, risks and time they take to work. Medicines are usually chosen together with you, and any decision about starting, changing or stopping is made with your prescriber, never suddenly on your own. CBT and medicine can work well together, and many people do well with therapy alone.

Living with this condition

CBT is a bit like learning an instrument: the sessions teach you the technique, but the daily practice is where the change happens. Expect to spend 20 to 30 minutes on most days noting thoughts, trying a small new behaviour, or doing a breathing or attention exercise. Progress is often uneven — a good week followed by a harder one is normal. Keep your goals small and specific ('walk to the end of the street twice this week' rather than 'be confident').

Lifestyle tips

• Keep a steady daily routine with regular meals and a consistent sleep and wake time
• Build in one pleasant activity each day, even briefly
• Stay connected — a short call or message to one person a day makes a real difference
• Limit news and social media if it leaves you tense or comparing yourself to others
• Write down what helped after a difficult moment, so you can use it again
• Plan for known triggers, such as a work deadline or a family event, with a simple coping plan

Diet and exercise

There is no special diet for anxiety or low mood, but eating regularly helps keep energy and mood steadier. Aim for balanced meals with vegetables, fruit, whole grains and protein, and try not to skip breakfast. Regular movement is one of the best-supported mood boosters there is — anything from walking and gardening to swimming or cycling. Aim for something most days, at a level that feels manageable. Cutting back on alcohol and late caffeine often improves both sleep and anxiety.

Mental health and emotional wellbeing

CBT is aimed squarely at mental health, so it is worth saying plainly: difficult feelings are common and treatable, and having them is not a weakness. The work can bring up uncomfortable emotions at times, especially when you look closely at painful thoughts or memories. Tell your therapist if something feels too much — they can slow down or change approach. Some people find therapy tiring at first. That usually settles as the skills become familiar.

Prevention

You cannot always prevent anxiety, low mood or other difficulties from starting, but CBT skills can reduce the chance of them coming back or becoming severe. Learning to notice unhelpful thoughts early, staying active, keeping connected with people, and getting help sooner rather than later all make a difference. For people who have had a previous episode, a short refresher course of CBT is a well-evidenced way to lower the risk of relapse.

Screening programmes

There is no national screening programme for the difficulties CBT treats. If you notice changes in your mood, sleep, worry or behaviour that last more than a couple of weeks, it is reasonable to raise them with your doctor — you do not need to wait for someone to ask.

Complications

If left untreated

• Anxiety or low mood can deepen and last longer
• Avoidance tends to spread, so life gets smaller over time
• Sleep, appetite and concentration can suffer
• Relationships, work or study may be affected
• Alcohol or drug use may increase as a way of coping
• Physical health can suffer through stress, inactivity and poor sleep
• Isolation can make everything harder

Long-term outlook

The outlook is genuinely encouraging. CBT has a large body of research behind it, and many people notice real change within a few weeks and keep the benefits long after therapy ends. Not everyone finds it the right fit first time, and that is okay — other therapies, different pacing, or a different therapist may help. The most important step is to ask for help, and to keep talking to your healthcare team until you find the support that works for you.

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