Module 2 — Who is Steven Hayes? | ACT Course
- Jun 4
- 6 min read
Updated: Jun 5
Free Course by Everything IFS Academy | Therapeutic Modalities Series
Module 2 — Who is Steven Hayes?
A therapy now taught to millions might be expected to have begun in the calm of a research lab, sketched out on a whiteboard by someone observing other people's problems from a safe distance. Acceptance and Commitment Therapy began nowhere near there. It began in the private terror of its creator's own breakdown, on a night he was certain he was dying.
Steven Hayes, the architect of ACT
Steven C. Hayes is an American clinical psychologist and the primary architect of Acceptance and Commitment Therapy. He is also the originator of the behavioral science that sits beneath it, and his long career has circled one question above all others: why human beings suffer the way they do, and what can actually be done about it. He began building the ideas that would become ACT in the late 1970s. What gives those ideas their unusual force is that Hayes did not arrive at them from the outside. He arrived at them as a patient.
The panic that started everything
As a young psychologist, Hayes had his first panic attack during a faculty meeting. Over the following years it deepened into panic disorder, a condition marked by recurring, overwhelming surges of fear along with the bodily storm that accompanies them: a racing heart, a tightening chest, the sudden certainty that something catastrophic is about to happen. The attacks began showing up wherever the stakes felt high, especially when he had to speak in public.
Here is the cruel irony at the center of the story. Hayes was a psychologist, equipped with every technique the field had to offer, and the harder he applied them, fighting the anxiety, trying to control it, reasoning with it, the worse it became. He developed what might be called anxiety about anxiety, where the fear of the next attack quietly fed the next attack. The standard strategy of getting rid of the feeling was not merely failing. It was fuel.
The turn: "I will not run from me"
About three years in, Hayes hit bottom. One night, chest pain and pain shooting down his arm convinced him he was having a heart attack. It was a panic attack mimicking one. On the edge of calling an ambulance, he made a different choice. Instead of running from the experience one more time, he turned toward it and made a promise to himself, captured in five words he has repeated ever since: "I will not run from me."
That moment was the seed of the entire approach. The pivot was from control to willingness. Rather than trying to eliminate the fear, Hayes chose to let it be present and to keep moving toward what mattered to him anyway. Out of that single turn grew a whole model of human wellbeing, the idea that a good life comes not from winning a war against one's own inner experience, but from changing one's relationship to it and acting on one's values regardless of what shows up inside.
The co-founders: Kirk Strosahl and Kelly Wilson
ACT was not the work of one person alone, and an honest origin story says so. Hayes is the primary architect, but the therapy as a complete, teachable system took shape across decades of collaboration, most centrally with two colleagues. Kirk Strosahl, a psychologist who would later do much to bring ACT into everyday medical and primary-care settings, and Kelly Wilson, who helped shape its experiential and values-centered heart. The three co-authored the foundational text that introduced ACT to the wider field in 1999, titled Acceptance and Commitment Therapy: An Experiential Approach to Behavior Change. That book was roughly twenty years in the making, and crediting all three is far closer to the truth than any tidy single-founder myth.
The science underneath: Relational Frame Theory
Beneath the visible therapy sits a body of behavioral science that Hayes spent decades building, and at its center is Relational Frame Theory, usually shortened to RFT. In the plainest possible terms, RFT is an account of how human language works: how the mind learns to link almost anything to almost anything else, and how that very capacity, so useful for solving problems, is also what allows ordinary thoughts to become engines of suffering. The full theory is technical and belongs to the science rather than to a beginner's toolkit. What matters here is the through-line. Because Hayes traced suffering in part to the way language and thought operate, ACT was built to change a person's relationship to their thoughts rather than to argue with the content of those thoughts. The science is the reason the approach takes the shape it does.
Russ Harris, the translator
If Hayes is the architect, the name many people meet first is Russ Harris. A physician who became a therapist and ACT trainer, Harris did something the original academic work could not do on its own. He made ACT plain, warm, and usable for the general public, above all through his bestselling book The Happiness Trap and his widely used guide ACT Made Simple. A great many of the most recognizable and most teachable tools in ACT, the very ones that appear throughout this course, come from Harris's work and his gift for translation, including the Choice Point, dropping anchor, the struggle switch, and the FEAR and DARE acronyms. This is lineage and popularization, not a second founding. Harris did not create ACT. He opened its doors to millions of people who would never have picked up the original texts.
Why this origin matters
ACT did not start as an abstract theory hunting for a problem to solve. It started with a real person facing a problem that refused to yield to control: pain that could not simply be removed. That beginning is stamped into every skill the approach teaches. Because ACT was forged in the discovery that fighting inner experience tends to amplify it, every tool that follows pushes in the same direction, not toward eliminating difficult thoughts and feelings, but toward holding them differently and living well in their company. The story of one psychologist's worst night is, in the end, a compact version of what the whole approach is for.
Common questions
Did Steven Hayes overcome his own panic disorder? In the way ACT means it, yes, though "overcame" deserves a footnote. The turning point did not make fear vanish. What changed was his relationship to it. Once he stopped organizing his life around avoiding panic, the disorder gradually lost its grip and largely receded. ACT would frame that win not as defeating anxiety but as no longer being ruled by it. By the approach's own logic, the capacity for fear never simply disappears for anyone; the freedom lies in no longer running from it.
Is ACT based on Buddhism or Eastern philosophy? ACT uses mindfulness and acceptance, and those practices clearly echo themes found in Buddhist and other contemplative traditions, a resemblance many people notice. But ACT did not grow out of those traditions. It was derived independently from behavioral science and Relational Frame Theory, arriving at similar practices by a different, empirical route. The overlap is better understood as convergence than as borrowing.
Does a person need to understand Relational Frame Theory to benefit from ACT? No. RFT is the scientific account of why ACT works the way it does, but it sits underneath the approach the way an engine sits under a car. A driver does not need to understand combustion to get where they are going. The tools of ACT were built to be learned and used directly, without first studying the theory beneath them. RFT matters enormously to the researchers refining and extending the model, and a curious learner can certainly explore it later, but nothing in the practice of ACT waits on grasping it. The skills do their work whether or not the science behind them is understood.
Disclaimer: Everything IFS Academy is an independent educational platform and is not affiliated with, endorsed by, or connected to the IFS Institute. These courses, lessons, skills, and practices are offered for educational and self-reflection purposes only. They do not constitute therapy, mental health treatment, clinical training, or crisis support, and they should not be used as a substitute for professional mental health care.
Crisis Support: 🚨 If you are experiencing a mental health crisis, feel unsafe, feel at risk of harming yourself or someone else, or feel too overwhelmed to safely use self-directed practices, please pause this material and reach out for immediate support. Contact a licensed mental health professional, call or text 988 in the U.S. or Canada, or use your local emergency or crisis resources.
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