Professor of Public Health at Harvard University

U.S. Army Combat Veteran, Mental Health & Holistic Healing Advocate; Featured in the Award-Winning Documentary "Almost Sunrise"

Actor, Author & Former NFL Player; Advocate for Women's Rights

Physician-Scientist; Founder of Exponential Medicine; Chair for Medicine & Neuroscience at Singularity University

Healthcare Futurist, Johns Hopkins Surgeon & Professor of Public Health

Former CEO & President at Cleveland Clinic

Chief Legal Affairs Anchor at ABC News & Founder of Abrams Media

Emmy Award-Winning Talk Show Host Best Known For "The Montel Williams Show", Multiple Sclerosis Activist

Professor of Medicine and Engineering at the University of Southern California, Co-Founder of Navigenics & Author of "The End of Illness"

Chief Wellness Officer at the Cleveland Clinic & Co-Founder of RealAge; Anesthesiologist & Former FDA Advisory Committee Chair

New York Times Best-Selling Author, Fox News Political Analyst, Co-Host of "The Five" & Award-Winning Columnist

Former NFL Player & Inspiration for the Movie "Invincible"

Co-Founder Proximie, NHS Clinical Entrepreneur Fellow, Plastic Surgery Registrar at NHS, UCL Honorary Clinical Lecturer, Exponential Medicine Faculty and TED Speaker NHS

CrossFit Athlete, Coach & Christian Speaker

Personal Trainer & Former Host of "The Biggest Loser;" Heart Attack Survivor

Dancing with the Stars Champion & Mental Health Activist

World’s Strongest Amputee & Type 1 Diabetic

Author, Psychologist, Expert on Violence & Children; Senior Faculty Fellow, Center for the Human Rights of Children at Loyola University

Psychiatrist and Director of the African Mental Health Initiative

Trainer and Transformation Specialist on ABC's "Extreme Makeover: Weight Loss Edition"