Michael R. Mantell, Ph.D., the Senior Fitness Consultant for Behavioral Sciences for ACE, earned his doctorate at the University of Pennsylvania after completing his M.S. degree in clinical psychology at Hahnemann Medical College where he wrote his thesis on the psychological aspects of obesity. He has served as Chief Psychologist for San Diego's Children's Hospital and Health Center and the San Diego Police Department and has been on the clinical faculty of UCSD's Department of Psychiatry. He is a Behavior Science coach for fitness trainers, health coaches, world-class athletes and fitness enthusiasts for mental and behavioral performance enhancement. He has taught for the Equinox Fitness Training Institute, is an Ambassador for PHIT America, serves on the expert panel for greatist.com, is a weekly contributor to Fox 5 News, writes monthly for IHRSA, and is a member of the Sports Medicine Team at the Sporting Club of San Diego specializing in fitness behavioral science.