Acceptance and Commitment Therapy

ACT is a modern form of cognitive behavioural therapy developed by the American psychologist Steven Hayes during the 1980s and 90s. It belongs to what is often called the third wave of CBT — a family of methods that complement classic CBT with a greater focus on acceptance, mindfulness and values rather than thought change alone.

The core idea of ACT differs from older forms of therapy in an important way. While classic CBT often aims to reduce or change negative thoughts and feelings, ACT holds that this is not always possible — or even necessary. The problem is not that you have difficult thoughts and feelings. It is that the struggle against them takes so much energy that you stop living the life that truly matters to you. The goal of ACT is therefore not freedom from discomfort, but freedom to act according to your values despite discomfort.

The name ACT is no coincidence — it is an acronym for the three central processes in the therapy: Accept your reactions and be present, Choose a valued direction, Take action.

ACT is based on an insight that can feel counter-intuitive: the more we try to control or avoid difficult thoughts and feelings, the stronger and more dominant they become. In ACT language this is called experiential avoidance — withdrawing from inner experiences we do not want.

Imagine being told not to think about a pink elephant. What happens? You immediately think of a pink elephant. The same principle applies to worry, anxiety and negative thoughts: the harder we fight them, the more space they take up. Strategies such as distraction, rumination, over-control or avoiding situations that trigger discomfort provide short-term relief but maintain the problem in the long run.

ACT instead teaches you to relate to difficult thoughts and feelings with curiosity and openness — to let them be there without them controlling your behaviour. This frees up energy and space to do what truly matters to you.

ACT works with six interconnected processes that together aim to increase psychological flexibility — the ability to be fully present and act in line with your values, even when it is hard.

Acceptance is about making room for difficult thoughts and feelings without fighting them. It is not the same as giving up or thinking everything is fine — it is an active choice to stop spending energy battling the unavoidable.

Defusion is the technique of creating distance from your own thoughts. Instead of seeing a thought as a truth you must act on, you learn to observe it as just a thought. A common exercise is adding the words "I notice I'm having the thought that..." before a troubling statement — "I'm a failure" becomes "I notice I'm having the thought that I'm a failure." It sounds simple but changes the relationship in a noticeable way.

Contact with the present moment is about conscious awareness — being in what is actually happening right now rather than getting stuck in rumination about the past or worry about the future. Mindfulness exercises are often used as a tool to train this ability.

The observing self is the ability to see yourself as more than the sum of your thoughts, feelings and roles. You are not your thoughts — you are the one observing them. This creates a stability and security that makes it easier to face difficult experiences.

Values are the heart of ACT. What truly matters to you? Not what you should value, not what others expect — but what gives your life meaning and direction at its core. Values in ACT are not goals you can tick off but more like a compass direction: you can always move towards them, even if you never reach a final destination.

Committed action means actually taking steps in the direction of what you value, even when it is uncomfortable. This is where change happens in reality — not just inside you.

An ACT treatment resembles CBT in its structure: it is time-limited, goal-oriented and requires your active participation. Typically it involves 10 to 20 sessions, with work continuing between sessions.

We explore together what matters to you in life and what prevents you from living in accordance with it. We identify what avoidance strategies you use and what they cost you. Then you practise acceptance and defusion — meeting the difficult without fleeing or fighting — and take concrete steps towards what has value for you.

Metaphors and exercises are central elements of ACT. The therapist might, for example, use the "bus metaphor": imagine you are driving a bus and your passengers — your fears, self-critical voices and negative thoughts — are shouting at you to stop or turn around. ACT teaches you to keep driving towards your destination, even if the passengers do not fall silent.

ACT has proven effective for a broad spectrum of conditions. Depression, anxiety disorders, stress-related ill health and chronic pain are the areas where the research is strongest. But ACT is also used for eating disorders, substance abuse, OCD and work-related burnout. The method is also well suited for people who do not necessarily have a diagnosis but feel stuck in life — living in a way that does not align with what they truly want.

ACT is one of the most well-researched therapy forms within third-wave CBT. Hundreds of randomised controlled trials have been conducted, and meta-analyses show that ACT has robust effects comparable to classic CBT for most conditions. For certain groups — including chronic pain and stress-related ill health — there are indications that ACT may have advantages over other methods, likely because the focus on acceptance and values is particularly well suited when the problem cannot be "solved away."

Research also shows that the mechanism ACT claims lies behind change — increased psychological flexibility — actually mediates the treatment effect. In other words: it is not just that ACT works, but it appears to work for the reasons the theory predicts.

ACT may initially feel different from what you expect of therapy. Instead of focusing on getting rid of what is difficult, it invites you to explore it — with openness and curiosity. It takes courage. But it may also be precisely what makes the difference for someone who has tried other approaches without achieving lasting change.

If you feel you are spending a lot of energy fighting your own inner world, or that fear and worry are preventing you from living the life you want — ACT may be worth exploring.