Acceptance and Commitment Therapy (ACT, pronounced as the word "act") is a modern, evidence-based form of psychotherapy that takes a fundamentally different approach to difficult thoughts and feelings than traditional CBT.
Rather than trying to change or eliminate negative thoughts, ACT teaches you to change your relationship to those thoughts — to hold them more lightly — while committing to action based on your deepest values.
It sounds simple. The application is profound.
The Core Idea Behind ACT
Most of us spend enormous energy trying to control or eliminate uncomfortable thoughts, feelings, and sensations. We avoid situations that trigger anxiety. We ruminate trying to solve emotional problems. We suppress feelings we don't want to have. We tell ourselves we'll pursue meaningful things once we feel better.
ACT challenges this strategy directly: the attempt to control or avoid inner experience often creates more suffering, not less.
The alternative ACT proposes: accept the presence of difficult inner experiences, defuse from their grip on your behavior, and commit to living according to your values regardless.
The goal isn't to feel better. It's to live better — and often, feeling better follows.
The Six Core Processes of ACT
ACT is built around six psychological processes that together build psychological flexibility — the ability to be present, open, and engaged with your life even when difficult things arise.
1. Acceptance
Allowing difficult thoughts, feelings, and sensations to be present without fighting them. Not resignation — active, open willingness. "I notice I feel anxious. I can let this be here."
2. Cognitive Defusion
Creating distance between yourself and your thoughts. Thoughts are not facts; they are mental events. Techniques like saying "I notice I'm having the thought that..." or labeling thoughts as "stories my mind tells" reduce their emotional grip.
3. Present-Moment Awareness
Bringing attention to the here and now rather than being pulled into past regrets or future worries. This overlaps significantly with mindfulness practice.
4. Self-as-Context (The Observing Self)
Recognizing that you are not your thoughts or feelings — you are the one who observes them. This "observer self" perspective creates stability: no matter what thoughts or feelings arise, the observing self remains constant.
5. Values Clarification
Identifying what matters most to you — not goals, but directions and qualities of being. Values in ACT are like a compass: they guide action but are never "achieved" and checked off.
6. Committed Action
Taking effective action guided by your values, even in the presence of difficult inner experiences. The commitment is to values-directed behavior, not to feeling comfortable.
Together, these six processes address the opposite of psychological flexibility — psychological rigidity, where people get so caught up in their inner experience that they lose contact with the present and stop acting on what matters.
What ACT Treats
ACT has an impressive and growing evidence base across a wide range of conditions:
- Anxiety disorders — highly effective, particularly for generalized anxiety and health anxiety
- Depression — equivalent outcomes to CBT in multiple trials
- Chronic pain — one of ACT's strongest evidence areas; changing the relationship to pain rather than trying to eliminate it
- OCD — ACT for OCD focuses on defusion from obsessive thoughts without engaging in compulsions
- Eating disorders
- Substance use and addiction
- Work stress and burnout
- Cancer and chronic illness adjustment
- Psychosis (ACT-informed approaches)
- General psychological flexibility and wellbeing
A 2012 meta-analysis in the Journal of Contextual Behavioral Science confirmed ACT's effectiveness across multiple conditions, with effect sizes comparable to CBT.
ACT vs CBT: Key Differences
ACT and CBT are related — ACT is sometimes called a "third wave" cognitive-behavioral therapy — but they differ in important ways:
CBT focuses on identifying and changing unhelpful thoughts. If you think "I'm going to fail this presentation," CBT helps you evaluate that thought, find evidence for and against it, and replace it with a more balanced alternative.
ACT focuses on defusing from unhelpful thoughts rather than changing them. Instead of debating whether you'll fail the presentation, ACT helps you notice "my mind is telling me I'll fail," acknowledge it without acting as if it's definitely true, and give the presentation anyway because it aligns with your values.
Neither approach is universally better. CBT tends to work faster for specific, identifiable thought distortions. ACT may work better for people who've tried CBT but found that arguing with thoughts kept them stuck in the arguing — or for chronic, pervasive conditions where the goal is long-term quality of life rather than symptom elimination.
What ACT Sessions Look Like
ACT sessions are collaborative and often creative. You might:
- Explore your values in depth — what kind of person do you want to be, not just what do you want to achieve
- Practice defusion exercises: watching thoughts pass like leaves on a stream, giving your "inner critic" a name and voice
- Notice when you're fused with a thought vs. able to observe it
- Examine avoidance patterns — what are you doing to avoid discomfort, and what is it costing you?
- Develop committed action plans aligned with your values in specific life domains
ACT therapists typically use metaphors and experiential exercises more than some other approaches. Sessions can feel somewhat different from CBT — less analytical, more experiential.
Can ACT Be Done Online?
Yes. ACT translates well to video sessions — the skills are internal and the exercises are verbal and experiential. Several apps (Woebot, Finch) use ACT principles, though these are supplements rather than replacements for professional therapy.
Shemesh Wellness offers ACT-informed therapy with licensed professionals — from $79/session, free initial consultation.
Frequently Asked Questions
Is ACT better than CBT?
Neither is universally better. Meta-analyses find them broadly equivalent in outcomes. ACT may suit people who feel stuck in CBT's thought-challenging process or who want a more values-focused, philosophical framework.
Does ACT work for chronic pain?
Yes — chronic pain is one of ACT's strongest evidence areas. Pain acceptance (not resignation, but willingness to have pain present while engaging in life) is associated with significantly better functioning than pain elimination strategies.
Can ACT help with trauma?
ACT can be helpful for trauma, particularly for building psychological flexibility and value-directed living. However, for PTSD specifically, trauma-focused CBT or EMDR are the most evidence-based first-line treatments.
How long does ACT take?
ACT can be short-term (8–16 sessions) for specific concerns or longer-term for complex presentations. Like CBT, it tends to be more time-limited than psychodynamic approaches.
Explore ACT with a Licensed Therapist
Shemesh Wellness offers online therapy with licensed professionals trained in ACT and other evidence-based approaches — from $79/session.
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