What is ACT Therapy? How It Works & Who It Helps
ACT stands for Acceptance and Commitment Therapy. It’s one of the approaches I use most often in my practice, and also one of the most misunderstood when people first hear the name.
When people hear ‘acceptance,’ they sometimes assume it means resigning yourself to things. Accepting that you’re anxious. Accepting that you’re stuck. Learning to live with it and move on.
That’s not what it means at all.
ACT is about learning to relate to your thoughts and feelings differently, so that they no longer have to control what you do. It’s one of the most practical, evidence-based approaches in modern therapy, and it’s particularly effective for anxiety, depression, burnout, and the kind of stuck-ness that comes from trying very hard to think your way out of something that thinking alone can’t fix.
“ACT isn’t about feeling better. It’s about living better, even when the hard feelings are still there.”
The core idea behind ACT
Most of us spend a lot of energy trying to control how we feel. We try to get rid of anxiety. We try to stop thinking about the thing we can’t stop thinking about. We try to feel motivated before we can act, or calm before we can speak, or certain before we can move.
The problem is that fighting your own thoughts and feelings tends to make them louder, not quieter. The harder you try to push something away, the more mental space it occupies. ACT calls this ‘experiential avoidance’, and research consistently shows it’s one of the main things that keeps people stuck.
The alternative that ACT offers isn’t suppression or positive thinking. It’s something more honest: learning to observe your thoughts without being ruled by them, and choosing to act in line with what matters to you regardless of how you feel in the moment.
“The harder you try to push a thought away, the more mental space it tends to occupy.”
The six core processes of ACT
ACT is built around six interlocking ideas. Therapists who use ACT work with all of them, though the emphasis shifts depending on what’s most useful for a particular person at a particular time.
A — Acceptance
Not resignation, willingness. Acceptance in ACT means allowing uncomfortable thoughts and feelings to be present without trying to fight them or run from them. This sounds simple. In practice, it takes real work. But when it clicks, it tends to reduce the exhaustion that comes from constantly managing your inner experience.
D — Defusion
Cognitive defusion is the practice of creating distance between you and your thoughts. Instead of ‘I am anxious,’ it becomes ‘I notice I’m having the thought that I’m anxious.’ That shift in language is small, but the effect on how hooked you get by a thought can be significant. Your thoughts are something you have, they’re not who you are.
S — Self-as-context
This is the idea that there is a part of you that is observing your thoughts and feelings, and that this part of you is not the same as the thoughts themselves. You’re the sky, not the weather. This can be especially useful for people who have strong, difficult identities built around their struggles, ‘I am a depressed person,’ ‘I am an anxious person’, and want to loosen that grip a little.
C — Contact with the present moment
ACT draws from mindfulness traditions here. Most of our suffering happens in the past or the future, regret, worry, anticipation. Coming into contact with what’s actually happening right now, without judgement, is both a skill and a practice. It’s not about emptying your mind. It’s about noticing what’s here.
V — Values
One of the things I find most useful about ACT is its focus on values. Not goals, values. Goals are things you achieve. Values are the kind of person you want to be and the way you want to move through the world. They’re always available to act on, regardless of how you feel. Clarifying what you actually care about, what gives your life meaning, is often one of the most grounding things we do in therapy.
A — Committed action
The commitment in ACT isn’t ‘I will feel better.’ It’s ‘I will take this action, in the direction of my values, even while the difficult feelings are present.’ Small, consistent steps toward a valued life, even when motivation is low, even when anxiety is high. This is where real change tends to happen.
What does ACT actually look like in a session?
ACT sessions don’t follow a rigid script. Depending on where you are and what’s most useful, we might:
Use metaphors or short exercises to practise defusion from a specific recurring thought
Explore what you’ve been doing to avoid a feeling — and what that avoidance is costing you
Work through a values clarification exercise to get clearer on what actually matters to you
Identify one small action you can take this week that moves toward something you care about
Practise a brief mindfulness exercise to build present-moment contact
ACT is collaborative and practical. It’s not about lying on a couch talking about your childhood indefinitely, though understanding your history is often part of the work. It’s about building specific skills that change how you relate to your inner experience, and using those skills in real life.
Who does ACT tend to help?
ACT has a strong evidence base across a wide range of concerns. It tends to be particularly effective for:
Anxiety and worry, especially when you’ve already tried to logic your way out of it
Depression, particularly the kind that involves withdrawal and loss of meaning
Burnout, where reconnecting with values is often the most important first step
Chronic pain or illness, where acceptance of what can’t be changed makes space for what can
Perfectionism and self-criticism, where defusing harsh internal voices is central
Life transitions, where values clarification helps people figure out what they actually want next
That said, ACT isn’t the only tool I use. Depending on what you bring, I’ll also draw from EFT, IFS, somatic approaches, and the Gottman Method for couples. The approach follows the person, not the other way around.
A note on the research
ACT is classified as an empirically supported treatment by the American Psychological Association. There are now hundreds of randomised controlled trials supporting its effectiveness across a broad range of clinical presentations. It’s also one of the ‘third wave’ cognitive-behavioural therapies, which means it builds on the foundation of CBT while incorporating mindfulness, values, and acceptance-based strategies.
If you’re someone who likes to understand the rationale behind what you’re doing in therapy, and a lot of my clients are, ACT tends to make sense in a way that’s satisfying even before you’ve experienced it working.
“ACT makes sense even before you’ve experienced it working, which is part of why it tends to land well with people who like to understand the logic behind things.”
A note from me
ACT is the approach I come back to most often in my practice, not because it’s the most fashionable, but because I’ve seen what happens when someone stops fighting with their own mind and starts moving toward what actually matters to them. It’s one of those things that can feel almost counterintuitive at first, and then suddenly obvious.
If you’ve been trying very hard to feel differently, and it’s not working, ACT might offer a different way in.
A relaxed conversation to see if we’re a good fit, no pressure, no commitment.
