Acceptance & Commitment therapy (ACT)
- Wendy Hooker
- Apr 23
- 6 min read
Acceptance and Commitment Therapy (ACT) - What It Is, How It Helps and the Evidence Behind It
Acceptance and Commitment Therapy (ACT) is an evidence‑based psychological approach that helps people build psychological flexibility, reduce struggle with difficult thoughts and emotions and move towards a more meaningful, values‑led life. Increasingly used across the NHS, private practice and workplace well-being settings.
ACT is a powerful therapeutic model for anxiety, depression, trauma, chronic illness, stress and many other issues.
This blog explores what ACT is, how it works, the research behind it and how it can support you in therapy.
What Is Acceptance and Commitment Therapy (ACT)?
Acceptance and Commitment Therapy (pronounced 'act') is a modern behavioural therapy developed in the 1980s by psychologist Steven C. Hayes. It is part of the “third wave” of cognitive‑behavioural therapies, alongside approaches such as Mindfulness‑Based Cognitive Therapy (MBCT) and Compassion‑Focused Therapy (CFT).
Rather than trying to eliminate difficult thoughts or feelings, ACT helps people change their relationship with inner experiences so they no longer dominate or restrict their lives. The focus is on:
Acceptance – making space for thoughts, emotions, and sensations without avoidance or struggle
Cognitive defusion – stepping back from unhelpful thoughts rather than getting entangled in them
Present‑moment awareness – grounding in the here‑and‑now
Self‑as‑context – developing a more spacious sense of self
Values – clarifying what truly matters
Committed action – taking meaningful steps aligned with those values
Together, these processes can help build psychological flexibility, which ACT defines as the ability to stay present, open and engaged in meaningful action even when life feels difficult.
How ACT Differs from Traditional CBT
While ACT is part of the CBT family, it takes a different approach:
Traditional CBT focuses on challenging and changing thoughts
ACT focuses on changing how we relate to thoughts
CBT aims to reduce symptoms
ACT aims to increase psychological flexibility, with symptom reduction often following naturally
CBT emphasises cognitive restructuring
ACT emphasises mindfulness, acceptance, and values‑based action
Many people find ACT particularly helpful when they have tried CBT before but still feel stuck in cycles of avoidance, rumination or self‑criticism.
The Core Model: Psychological Flexibility
Psychological flexibility is at the heart of ACT. It means:
Being open to inner experiences
Staying present rather than getting caught in the past or future
Taking action guided by personal values
Research shows that psychological flexibility is strongly linked to improved mental health, resilience, well-being and quality of life.
ACT can help people shift from 'struggling with' their thoughts and feelings to 'making room for' them, therefore freeing up energy to focus on what matters.
How ACT Works in Therapy
ACT is experiential, practical, collaborative and includes;
1. Mindfulness and grounding practices
These can help people to develop an awareness of thoughts, emotions and bodily sensations without becoming overwhelmed by them.
2. Acceptance strategies
Learning to soften resistance to difficult experiences can help reduce the exhausting cycle of avoidance.
3. Cognitive defusion techniques
These strategies can help people step back from unhelpful thoughts such as 'I’m not good enough' or 'I can’t cope', to see them as mental events rather than facts.
Examples include:
Naming the story (There’s the ‘I’m not good enough’ story again)
Repeating a thought until it loses its power
Visualising thoughts as metaphors such as leaves on a stream
4. Values clarification
ACT places a strong emphasis on identifying what truly matters, relationships, health, creativity, contribution, growth, compassion and authenticity.
Values become a compass for decision‑making and behaviour change.
5. Committed action
People can take small, achievable steps aligned with their values, even when difficult emotions show up, which can help build confidence, resilience and momentum.
6. Metaphors and experiential exercises
ACT uses metaphors such as:
The Passengers on the Bus
The Struggle Switch
The Tug of War with the Monster
These can help people understand complex psychological processes in simple and relatable ways.
What Issues Can ACT Help With?
ACT is widely used across mental health, physical health and workplace well-being. Research shows it can be effective for:
Anxiety Disorders
Including generalised anxiety (GAD), social anxiety (SAD), panic, health anxiety (HAD) and phobias.
ACT can help people to stop avoiding anxiety and instead build a more flexible and compassionate response to it.
Depression
ACT can help support people to reconnect with their values, reduce rumination and take meaningful action even when motivation may be low.
Stress and Burnout
ACT is increasingly used in workplace well-being programmes to help people manage pressure, uncertainty and emotional fatigue.
Trauma
ACT can help people relate differently to traumatic memories and sensations, reducing avoidance and supporting post‑traumatic growth.
Chronic Pain and Long‑Term Health Conditions
ACT is recommended in many NHS pain services, as it can support people to reduce the struggle with pain and focus on living a meaningful life alongside symptoms.
Grief and Loss
ACT can support people to honour their values and continue living meaningfully whilst holding space for grief.
Low Self‑Esteem and Self‑Criticism
By developing self‑compassion and defusion skills, people can learn to step back from harsh inner narratives and develop a more compassionate relationship with themselves.
Relationship Difficulties
ACT can help people communicate more authentically, manage emotional triggers and act in line with relational values.
Emotional Dysregulation
ACT strengthens grounding, acceptance and mindful awareness, enabling people to 'respond' rather than 'react'.
The Evidence Base for ACT
ACT is one of the most researched modern therapies. Over 1,000 peer‑reviewed studies support its effectiveness across a wide range of psychological and physical health conditions.
Key findings include:
1. Strong evidence for anxiety and depression
Multiple meta‑analyses show ACT is as effective as CBT for anxiety and depression, with some studies suggesting longer‑term maintenance of gains due to its focus on values and flexibility.
2. Effective for chronic pain
ACT is recommended in many pain management programmes. Research shows improvements in functioning, lowered distress and enhanced quality of life even when pain levels remain unchanged.
3. Benefits for workplace well-being
ACT‑based interventions have been shown to reduce stress, burnout and emotional exhaustion, whilst improving resilience and job satisfaction.
4. Effective for trauma
Studies show ACT can reduce trauma symptoms and support recovery by helping people relate differently to traumatic memories.
5. Improvements in psychological flexibility
Psychological flexibility is a key predictor of mental health outcomes and ACT has been shown to consistently increase flexibility across diverse populations.
Why ACT Can Be So HELPFUL
ACT resonates with many people as it:
1. Reduces the exhausting cycle of avoidance
Avoidance often provides short‑term relief but long‑term suffering. ACT can help break this cycle.
2. Encourages self‑compassion
ACT teaches people how to respond to themselves with kindness rather than self‑criticism.
3. Helps people live more authentically
Values based work can support people to reconnect with what matters most.
4. Builds resilience
By learning to sit with discomfort, people can become more adaptable and confident.
5. Works even when symptoms are persistent
ACT does not require symptoms to disappear before life can improve.
6. Integrates well with other therapies
ACT blends naturally with:
Mindfulness‑based approaches
Compassion‑Focused Therapy
Trauma‑informed work
Traditional CBT
What ACT Sessions Look Like at WJH Therapy
At WJH Therapy, ACT is offered as part of an integrative, evidence‑based approach tailored to each person's needs. Sessions may include:
Gentle mindfulness practices
Exploring the 'struggle switch' and how to turn it down
Identifying unhelpful avoidance patterns
Working with difficult thoughts using defusion
Clarifying personal values
Setting small, meaningful goals
Developing self‑compassion and emotional resilience
The pace is always guided by the individual, ensuring safety, choice and collaboration.
ACT can be offered as a standalone therapy or integrated with other approaches such as CBT and CFT.
Is ACT Right for You?
ACT may be a good fit if you;
Feel stuck in cycles of worry, avoidance, or self‑criticism
Want to develop a more compassionate relationship with your thoughts and emotions
Are living with chronic stress, anxiety, or low mood
Want to reconnect with your values and sense of purpose
Are managing a long‑term health condition or chronic pain
Feel overwhelmed by life transitions, grief or uncertainty
Want a practical, experiential therapy that supports real‑life change
ACT is suitable for both short‑term and longer‑term therapy.
Final Thoughts
Acceptance and Commitment Therapy offers a powerful, compassionate and evidence‑based way to navigate life’s challenges. By helping people build psychological flexibility, ACT can support meaningful and sustainable change by allowing individuals to live more fully, even in the presence of difficulty.
If you’re curious about ACT or wondering whether it may help you, you’re welcome to get in touch to explore this further.
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