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CBT

Cognitive behavioural therapy

The most heavily researched method in psychotherapy. It works on the link between thought, emotion and behaviour, with homework between sessions.

What it is

Cognitive behavioural therapy starts from a simple observation: it isn't events themselves that cause our suffering, but the interpretation we give them. Two people laid off on the same day can end up with completely different reactions — one thinks "I was let go because I'm worthless", the other "the company cut an entire department". The first thought produces shame and withdrawal. The second produces frustration and action.

CBT doesn't tell you to "think positive". It asks for something harder and more useful: treat thoughts as hypotheses, not facts. A CBT therapist will keep asking "what evidence do you have for that?" and "what evidence do you have against it?" — until checking becomes a reflex you perform on your own.

The "behavioural" half matters just as much, and it's the part people underestimate. Anxiety feeds on avoidance: you skip the event, you feel relief in the moment, and your brain learns the event really was dangerous. CBT intervenes exactly there, through graded and planned exposure.

How it works

The central mechanism is called cognitive restructuring. You learn to catch the automatic thought as it appears, write it down, evaluate it and build a more accurate alternative. Not a more optimistic one — a more accurate one.

The second mechanism is exposure. You and your therapist build a hierarchy of avoided situations, from the easiest to the hardest, and work through them at your pace. Every exposure completed without the anticipated catastrophe is evidence your brain registers far better than any logical argument.

The third is behavioural activation, the main engine in depression. Depression lowers energy, low energy reduces activity, and inactivity deepens the depression. CBT breaks the loop at the point you can control: you schedule small activities before you feel like doing them.

What a session looks like

A CBT session has a visible structure, unlike exploratory therapies. First 5 minutes: how the week went, what changed. Next 10: what came out of the homework — what you tried, what worked, where you got stuck. Then 25-30 minutes on the main problem of the week, worked with a concrete tool (a thought record, a behavioural experiment, an exposure hierarchy). Final 5-10 minutes: you agree together on next week's assignment.

You will write. You will almost certainly keep a notebook or document where you log thoughts, situations and outcomes. Good CBT therapists don't set homework to tick a procedural box — the homework is where change actually happens, and the session is where you tune it.

What it works for

  • Anxiety disorders (generalised, social, panic)
  • Mild-to-moderate depression
  • Specific phobias
  • Obsessive-compulsive disorder (with response prevention)
  • Insomnia (the CBT-I variant)

How long it takes

CBT is short-term by design: 12-20 sessions for uncomplicated anxiety or depression, 6-8 for a specific phobia. If by session 20 you see no measurable movement, that is information — raise it directly with your therapist rather than reading it as personal failure.

What the evidence says

CBT carries the largest research volume in psychotherapy. It is recommended as first-line treatment for anxiety disorders and mild-to-moderate depression in the NICE guidelines (National Institute for Health and Care Excellence, UK). A landmark review (Hofmann et al., 2012, Cognitive Therapy and Research), synthesising 269 meta-analytic studies, found robust effects particularly for anxiety, panic disorder and somatic symptoms.

When it is NOT the right choice

CBT asks for structure, homework and a definable goal. If you arrive with "I don't know what's wrong, I've felt empty for years", an exploratory therapy — psychodynamic or person-centred — is often a better starting point. Likewise, if your distress is tied to unprocessed trauma, classic CBT can feel superficial; look for trauma-focused CBT or EMDR. And if you've already tried CBT twice without result, a third round of the same model is rarely the answer.

Problems treated with this method

Frequently asked questions

Is CBT just "think positive"?

No, and it's the most common confusion. CBT doesn't replace a dark thought with a rosy one, but with a verified one. If the thought "I'm going to be fired" genuinely has evidence behind it, the therapist won't contradict you — they'll move to "all right, and if it happens, what's the plan?". Accuracy, not optimism, is the criterion.

Do I really have to do homework?

Effectively yes. Studies consistently show that patients who complete homework get better outcomes than those who don't, at the same number of sessions. One session a week is 50 minutes out of 10,080. Change happens in the rest.

Does CBT work as well online?

CBT has the strongest evidence base of any method for the online format, precisely because it is structured: worksheets, hierarchies and assignments transfer just as well through a screen. For anxiety and depression, studies find no significant difference against in-person delivery.

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Other approaches

EMDR therapyA trauma method using bilateral stimulation. It doesn't require narrating the event in detail — which is why it is bearable when talking isn't.Psychodynamic therapyThe modern descendant of psychoanalysis. It looks for the pattern repeating beneath the symptom, not just the symptom. Longer, deeper, no homework.Dialectical behaviour therapyFor emotions that arrive too fast and too hard. It teaches four concrete skill sets: distress tolerance, emotion regulation, mindfulness, relationships.Acceptance and commitment therapyIt doesn't try to change your thoughts, but your relationship to them. The goal isn't to feel good, it's to live by your values even when you don't.Systemic family therapyIt treats the family as a system, not one person as the fault. One member's symptom is often the solution the system found to a problem nobody names.Emotionally focused therapy for couplesThe best-evidenced couples method. It doesn't teach communication techniques — it untangles the cycle where one pursues and the other withdraws.Gestalt therapyIt works with what's happening now, in the room, not the story about the past. Experiential and direct — you'll do things, not just talk about them.Person-centred therapyNo techniques, no homework, no interpretations. It bets everything on the relationship — and research shows the relationship is the best predictor of outcome in all of psychotherapy.Mindfulness-based cognitive therapyA structured 8-week group programme. Built specifically to prevent relapse into depression — not to treat an episode in progress.Schema therapyFor lifelong patterns, not recent symptoms. It combines CBT, attachment and experiential techniques — built for the cases where classical CBT wasn't enough.Play therapyFor children who don't yet have the language of emotion. Play is the medium in which a six-year-old says what they can't explain — and parents are part of the process.

Not sure what fits you?

That's normal — most people don't know, and choosing the method is the therapist's job, not yours. A 15-minute call is enough to find out.