Holly Hazlett-Stevens received her Ph.D. in clinical psychology from the Pennsylvania State University in 1999. Under the mentorship of Dr. Thomas D. Borkovec, she studied the nature of anxiety and worry as well as cognitive behavioral therapy for generalized anxiety disorder. From 1999-2001, Dr. Hazlett-Stevens was a post-doctoral fellow at the Anxiety Disorders Research Center in the Department of Psychology at the University of California, Los Angeles (UCLA) under the mentorship of Dr. Michelle Craske. There she received training in cognitive behavioral treatment for panic disorder, coordinated panic disorder intervention research projects, and continued her own program of anxiety and worry research.

In 2002, Dr. Hazlett-Stevens joined the faculty of the Department of Psychology at the University of Nevada, Reno, where she is currently an Associate Professor. She has published over 50 scholarly research articles and book chapters and authored two books, Women Who Worry Too Much and Psychological Approaches to Generalized Anxiety Disorder. She also co-authored New Directions in Progressive Relaxation Training with Douglas A. Bernstein and Thomas D. Borkovec, and the updated Progressive Relaxation Training: A Guide for Practitioners, Students, and Researchers with Douglas A. Bernstein.

Since 2010, Dr. Hazlett-Stevens attended a series of intensive professional training programs in Mindfulness-Based Stress Reduction (MBSR) instruction from the University of Massachusetts Medical School Center for Mindfulness in Medicine, Health Care, and Society. She received over 260 hours of professional education in MBSR instruction and is a certified MBSR instructor. Dr. Hazlett-Stevens currently conducts research examining the effects of MBSR, the nature of mindfulness, and how mindfulness training reduces stress and anxiety while improving health and well-being.