Steven C. Hayes, Ph.D., is a clinical psychologist and one of the most influential figures in modern behavioral science, best known as the co-founder of Acceptance and Commitment Therapy (ACT). Dr. Steven C. Hayes is an Emeritus Professor of Psychology at the University of Nevada, Reno and President of the Institute for Better Health, a 45-year old charitable organization dedicated to better mental and behavioral health. His work has fundamentally shaped how psychological flexibility is understood and applied, including in the context of chronic conditions such as tinnitus, where acceptance-based approaches can reduce distress and improve daily functioning.

As a professor and prolific researcher, Hayes has authored dozens of books and hundreds of scientific articles, with his work translated into multiple languages worldwide. His focus on helping people change their relationship with difficult thoughts and sensations has made ACT a widely adopted, evidence-based approach that continues to inform innovative digital health solutions.