Since Dr. Mantell earned his Ph.D. at the University of Pennsylvania, he has served as Chief Psychologist for San Diego Children’s Hospital, created the nationally recognized Psychological Services program for the San Diego Police Department, served on the faculty of UCSD Medical School, taught at the School of Public Administration at USC and served as the Senior Fitness Consultant for Behavioral Sciences for the American Council on Exercise, where he helped author the Health Coach certification and the Behavior Change certification. He is also a member of the Science Advisory Board of the International Council on Active Aging.
As a writer, consultant and presenter, Dr. Mantell contributed widely to the national and international Health, Wellness and Fitness communities. Among his achievements are:
· A weekly guest on America Trends TV
· Int’l Director of Behavioral Sciences for Weekly Fitness Challenge`
· Wellness writer for St Pete Magazine
· Advisor for the International Medical Wellness Association
· Listed in the "100 Most Influential People in Health & Fitness" on Greatist.com
· Senior Behavior Science Consultant for Anytime Fitness
· Director of Transformational Behavior Coaching for Premier Fitness Camp
· Writer for: GetHealthyU.com, Total Gym Direct, SelfGrowth.com, San Diego Life Coach Examiner, HuffPost.com and four best-selling self-development books including the 1988 original, “Don’t Sweat the Small Stuff: PS It’s All Small Stuff” in addition to "The Link is What You Think," and "Ticking Bombs: Defusing Violence in the Workplace"
· Has authored articles on fitness, stress, trauma, employee-relations, & mental health for Oprah, Nightline, Larry King, Today and Good Morning America.