Acceptance and Commitment Therapy, usually shortened to ACT and said as the word "act," is a talk therapy that teaches you to make room for painful thoughts and feelings while you move toward what matters to you. The aim is a fuller life, even on days when anxiety or sadness is still around.
Part of our guide: Which Type of Therapy Is Right for You?
That is what sets it apart from many other therapies. Researchers describe the stance plainly: "changing the content of thoughts is seen as an unnecessary step in ACT". You still learn skills and you still change what you do. You just stop waiting until your mind is quiet before you start living the way you want to.
The central idea: psychological flexibility
ACT is built on a concept called psychological flexibility. In everyday terms, this means being able to notice what is happening inside you, stay in contact with the present moment, and choose your next step based on your values, instead of on whatever feeling happens to be loudest.
Published descriptions of the model name six core processes. Here they are in plain language:
| Process | What it means | Everyday example |
|---|---|---|
| Acceptance | Allowing unwanted thoughts and feelings to be there without having to reduce or obey them | Feeling nervous before a meeting and going anyway |
| Defusion | Getting some distance from a thought so it has less pull on your behavior | Noticing "I am having the thought that I will fail" instead of treating it as a fact |
| Present moment | Flexible, non-judging awareness of what is going on now | Coming back to the conversation you are in, away from tomorrow's worries |
| Self as context | Taking a perspective from which you can observe your own experiences | Seeing that you are the one noticing the sadness, and that you are more than the sadness |
| Values | Chosen qualities of action you want your life to reflect | Deciding that being a present parent matters to you |
| Committed action | Flexibly persisting in actions guided by those values | Keeping a weekly call with your child, even during a hard stretch |
What ACT can look like in session
ACT is an active therapy. Exact methods differ by clinician and by what you are working on, but sessions commonly include some mix of these:
- Mapping the struggle. You and your therapist look at what you have tried in order to escape hard feelings, what it has cost you, and whether it has worked over the long run.
- Clarifying values. You work out what you want your life to stand for in areas like relationships, work, health and community.
- Mindfulness and defusion exercises. These are short practices for noticing thoughts and body sensations without being pushed around by them.
- Setting concrete steps. You pick specific actions connected to your values and try them between sessions, then talk through what happened.
Between-session practice is an important part of many active therapies. ACT can also include facing things you have been avoiding. In one trial comparing it with CBT for anxiety disorders, both treatments included behavioral exposure.
A worked example
Take someone who turns down invitations because they fear being judged. A therapist using ACT would likely start by looking at the cost of all that avoidance. Next might come a values question, such as what kind of friend this person wants to be. Then the two of them would agree on a small step, like going to one dinner for an hour, with the anxious thoughts allowed to come along. Success is measured by whether the person went and what it meant to them, even if their heart was pounding the whole time. This example is illustrative, and real treatment is shaped around the individual.
What acceptance does and does not mean
"Acceptance" is the word people most often stumble on, so it helps to be specific.
- It does not mean liking your pain or deciding that things are fine as they are.
- It does not mean putting up with mistreatment or an unsafe situation. Changing your circumstances can be exactly the committed action your values call for.
- It does not mean giving up on feeling better. Symptom relief can still happen, and ACT's focus is on how you are living in the meantime.
- It does mean dropping the rule that a feeling has to go away before you can do something that matters.
What the research shows, including where it is disputed
ACT has a sizable research base, and experts read it differently. It is fair to know both views.
A 2020 review of 20 meta-analyses, covering 12,477 participants, reported that ACT was efficacious for every condition examined, including anxiety, depression, substance use, pain and mixed groups. It generally beat waitlists, placebo, usual care and most active treatments, with CBT as the exception. The authors of that review are ACT researchers, and they also discuss weaknesses in the evidence.
A more skeptical 2014 meta-analysis of 60 randomized trials found a small average effect and concluded that ACT was "not yet well-established for any disorder," rating it probably efficacious for chronic pain and tinnitus and possibly efficacious for depression, OCD, mixed anxiety and some other problems. That paper drew published responses, and the debate about how to grade this evidence has continued.
A few more specific findings are useful:
- Chronic pain. A 2020 Cochrane review analyzed ACT in only five studies and rated the ACT results very low quality. Its authors said they were very uncertain about its benefits for adults with chronic pain. Mind Body Seven's older article on ACT for chronic pain covers one earlier study on this topic.
- PTSD. The 2023 VA/DoD guideline found insufficient evidence to recommend for or against ACT as a PTSD treatment. It strongly recommends Cognitive Processing Therapy, EMDR and Prolonged Exposure instead.
- OCD. In a trial of 58 adults, adding ACT to exposure and response prevention worked well, but it did not improve results beyond exposure and response prevention alone.
Who may want to consider ACT
No study can tell you for certain whether ACT will suit you. These are reasonable signs it could be worth discussing with a clinician:
- You have spent years trying to argue yourself out of anxious or self-critical thoughts, and the arguing has become exhausting.
- You have put big parts of your life on hold until you feel better.
- You like the idea of working from personal values and practicing something specific each week.
- You live with something that cannot be fully fixed, such as an ongoing health condition or a loss, and want to live well alongside it.
When another approach may come first
ACT is one option among several, and your diagnosis can change the order of things. For OCD, the treatment with the strongest record is exposure and response prevention. For PTSD, guidelines favor the trauma-focused therapies named above. Severe depression, mania, psychosis or active safety concerns call for a full psychiatric evaluation before anyone settles on a therapy style. If you are trying to weigh the two best-known skills approaches, the comparison of CBT and ACT goes further.
Questions worth asking a therapist
The National Institute of Mental Health suggests asking about a therapist's credentials and experience, how progress will be assessed, and whether medication is an option. For ACT specifically, you might add:
- What training have you had in ACT, and do you use it on its own or blended with other approaches?
- Is ACT well suited to my diagnosis, or is there a better-studied first step?
- What would we track so that we both know whether this is helping?
- What will you ask me to practice between sessions?
Getting started
You can read more about how this therapy is approached on the ACT service page. To begin, request a consultation, and the intake team confirms fit, scheduling and costs.
FAQs
Is ACT a type of CBT?
It is usually grouped with the cognitive behavior therapies, and researchers often study it alongside standard CBT. It differs in what it targets: ACT puts less emphasis on changing what your thoughts say and more on how you respond to them.
How long does ACT usually take?
There is no single standard length. Research trials often use a fixed number of sessions, such as 12 weekly sessions, but real-world therapy depends on your goals and what you are treating. Ask your therapist for a rough timeline at the start.
Can I do ACT while taking psychiatric medication?
Often, yes. Psychotherapy can be used alongside medication, and many people do both. Talk with your prescriber and therapist so they can coordinate, and do not change or stop a medication on your own.
Is ACT the same as mindfulness?
No. Mindfulness skills are one part of ACT. ACT also includes values work, defusion and committed action, so you are expected to take concrete steps in your life as well as practice awareness.
