Jason Lillis Assistant Professor of Psychiatry and Human Behavior (Research)

Jason Lillis, Ph.D., is an Assistant Professor (Research) in the Department of Psychiatry and Human Behavior at the Warren Alpert Medical School of Brown University and a clinical psychologist at the Weight Control and Diabetes Research Center at The Miriam Hospital. He is the author of two books: Acceptance and Commitment Therapy and The Diet Trap.

Brown Affiliations

research overview

Jason is a leading researcher and an internationally recognized trainer of Acceptance and Commitment Therapy (ACT). His primary research interest is applying acceptance and mindfulness methods to promote health behavior change, with a specific focus on improving long-term weight loss outcomes. He is also interested in the impact of obesity stigma on health and its role in fostering unhealthy lifestyle behaviors.