Lesson 29: Acceptance vs Control
Module 9, Acceptance-based approaches: understanding when to change anxiety and when to make room for it.
The previous two lessons introduced mindfulness and values from Acceptance and Commitment Therapy. This lesson addresses the question that often comes up when people encounter ACT: if I’m supposed to accept my anxiety, what was the point of all those control techniques?
Module: 9, Acceptance-based approaches
Learning objective
By the end of this lesson, you should be able to distinguish workable from unworkable control strategies, understand what acceptance means (and doesn’t mean), and recognize when your efforts to manage anxiety might be making it worse.
The concept: the control paradox
Much of this curriculum has taught you to change things: reframe thoughts (Lesson 5), face fears (Lesson 16), slow your breathing (Lesson 25). These are effective, evidence-based strategies.
But sometimes control efforts backfire.
The thought-suppression problem
Try this: for the next thirty seconds, do not think about a white bear.
If you’re like most people in Daniel Wegner’s research, the white bear showed up immediately and kept returning [4]. Wegner called this the “ironic process theory” of mental control: trying to suppress a thought makes it more frequent, not less.
The same pattern applies to anxiety. Trying not to feel anxious can increase the feeling. Trying not to have a scary thought can make it stickier.
Workable vs unworkable control
| Strategy | Workable when… | Unworkable when… |
|---|---|---|
| Thought challenging | The thought is genuinely distorted and challenging shifts your perspective | You’ve challenged the same thought a hundred times and it keeps returning unchanged |
| Breathing exercises | Used to reduce physical discomfort so you can function | Used to eliminate all anxiety before you’ll do anything |
| Avoidance | Genuine danger (a dark alley, a speeding car) | The “danger” is an emotion you don’t want to feel |
| Distraction | Short-term coping for an intense moment | A lifestyle built around never sitting with discomfort |
The key distinction isn’t between good and bad techniques. It’s between strategies that are working for you and strategies that have become part of the problem.
Experiential avoidance
ACT identifies a pattern called experiential avoidance: the systematic attempt to avoid, suppress or control unwanted internal experiences [2]. Research shows that experiential avoidance is associated with higher anxiety severity and poorer functioning across anxiety disorders [3].
The problem isn’t any single avoidance act. It’s when avoidance of internal states becomes the organizing principle — when your life is shaped by what you’re trying not to feel.
What acceptance actually means
Acceptance in ACT is not:
- Giving up
- Approving of your anxiety
- Passive resignation
- Believing nothing can change
Acceptance is: willingness to have an internal experience without fighting it, while continuing to move in valued directions (Lesson 28).
A meta-analysis of ACT found it effective for anxiety, depression and other conditions, with outcomes comparable to established treatments [5]. The mechanism appears to work through increasing psychological flexibility — the ability to contact the present moment, accept internal experiences, and act on values — rather than through symptom reduction directly.
A worked example
The following is a fictional example used for teaching.
Nadia has health anxiety. For months she has been trying to control her anxious thoughts: challenging them with evidence, distracting herself, seeking reassurance from doctors, avoiding health-related news.
Each strategy works briefly. Then the thoughts return, often stronger. She realizes she spends most of her day either having health anxiety or trying not to have health anxiety. The control has become a full-time job.
Her therapist introduces acceptance: “What if you didn’t need the thoughts to go away before you could get on with your day?”
Nadia practices noticing the thought — “There’s the brain-tumor thought again” — without engaging with it or pushing it away. She still feels anxious. But she goes for a walk, calls a friend, works on her project. The thought is present and she is living her life alongside it.
Over weeks, the thoughts don’t disappear. But they take up less space. She has stopped pouring energy into fighting them, and that energy is now going into things she cares about.
A common misunderstanding
“Acceptance means CBT doesn’t work.” These are not opposing camps. Many therapists integrate cognitive techniques and acceptance-based approaches. Cognitive restructuring is useful when a thought is genuinely biased. Acceptance is useful when the struggle with the thought is the bigger problem. The question is practical: what does this person, with this pattern, need right now?
Optional reflection
Think of one thing you’ve been trying to control or suppress in your anxiety — a recurring thought, a physical sensation, an emotion. Ask yourself: has the effort to control it been working? If it has, keep going. If not, try spending one day simply noticing it when it appears, labeling it (“there’s that thought”), and returning to whatever you were doing. Not pushing it away. Not engaging with it. Just letting it be there while you act.
When to get support. Acceptance-based approaches can feel counterintuitive, and some people initially find it distressing to stop fighting their symptoms. A therapist trained in ACT can guide this transition. If your anxiety is severe or involves compulsive behaviors (such as repeated checking or reassurance-seeking), professional support is particularly important. If you are in crisis, contact emergency services or a crisis line: in the UK and Ireland, Samaritans on 116 123; in the US, call or text 988.
Recap
- Control strategies for anxiety are useful — until they aren’t. The test is whether they’re working in the long run.
- Experiential avoidance — the systematic attempt to suppress or escape internal states — is associated with greater anxiety.
- Thought suppression tends to make unwanted thoughts more frequent, not less.
- Acceptance means willingness to have an experience without fighting it, not resignation or approval.
- ACT and CBT are complementary. Which approach fits depends on what’s maintaining the problem.
Previous lesson: Lesson 28: Values-Based Action | Next lesson: Lesson 30: Anxiety vs Excitement — Reappraisal
Frequently asked questions
What does acceptance mean in ACT?
Acceptance means being willing to have an internal experience — a thought, a feeling, a sensation — without trying to suppress, escape or change it. It does not mean liking it, approving of it, or giving up. It means making room for it while continuing to act on your values.
Does acceptance mean I shouldn't use CBT techniques?
No. Acceptance and CBT techniques serve different functions. Cognitive restructuring helps when a thought is genuinely distorted. Acceptance helps when the thought or feeling is not going away and the attempt to control it is making things worse. Many therapists integrate both approaches.
What is experiential avoidance?
Experiential avoidance is the attempt to avoid, suppress or control unwanted internal experiences such as thoughts, feelings and sensations. It is a core concept in ACT. While avoiding external threats can be adaptive, systematically avoiding your own internal states tends to increase distress rather than reduce it.
How do I know when to accept and when to control?
A practical test: is your control strategy working in the long run? If challenging a thought genuinely changes how you see the situation, that is workable. If you have been trying to push a feeling away for months and it keeps returning stronger, that is unworkable control. The question is not 'is this technique good or bad?' but 'is it working for you?'
Sources and further reading
- Hayes, Strosahl and Wilson — Acceptance and Commitment Therapy: The Process and Practice of Mindful Change
Guilford Press, 2nd edition, 2012. Core ACT text covering acceptance, experiential avoidance and psychological flexibility.
- Chawla and Ostafin — Experiential avoidance as a functional dimensional approach to psychopathology
Journal of Clinical Psychology, 2007;63(9):871–890. DOI: 10.1002/jclp.20400.
- Kashdan, Barrios, Forsyth and Steger — Experiential avoidance as a generalized psychological vulnerability
Behaviour Research and Therapy, 2006;44(9):1301–1320. DOI: 10.1016/j.brat.2005.10.003.
- Wegner — Ironic processes of mental control
Psychological Review, 1994;101(1):34–52. DOI: 10.1037/0033-295x.101.1.34.
- A-Tjak et al. — A meta-analysis of the efficacy of acceptance and commitment therapy for clinically relevant mental and physical health problems
Psychotherapy and Psychosomatics, 2015;84(1):30–36. DOI: 10.1159/000365764.
Sources checked October 16, 2026. This is an editorial summary, not a systematic review or individual advice.