Shannon Miller

Olympic Gold Medalist, Health Advocate & Cancer Survivor

Dominique Dawes

Three-time Olympian, Olympic Gold Medalist, Healthy Lifestyle Advocate and Gymnastics Academy Owner

Joan Lunden

Award-Winning Journalist, Best-Selling Author, Health & Wellness Advocate

Mark Ballas

Dancing with the Stars Champion & Mental Health Activist

Nicholas Carr

Writer on the Intersection of Technology, Economics & Culture; Author "The Shallows" & "The Glass Cage"

Keri Glassman

Nutritionist, Author, Founder and CEO of Nutritious Life

Dr. Holly G. Atkinson

Award-Winning Medical Journalist

Chris Powell

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

Bob Harper

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

Maintaining A Healthy Body & Mind | Bob Harper Q&A

Daniel Altman

Sports Analytics & Strategy Expert

Dara Torres

12x Olympic Medalist, NYT Bestselling Author, Entrepreneur & Healthcare Reform Advocate

Risa Lavizzo-Mourey

Healthcare Expert and President Emerita of the Robert Wood Johnson Foundation

Dr. Mike Magee

President of Positive Medicine, Inc., Health Journalist & Author

Denise Austin

Fitness Expert, Author & Video Hall of Famer

Ethan Zohn

Winner of "Survivor" Africa, 2x Cancer Survivor, Stem Cell Transplant Recipient, Social Entrepreneur, Philanthropist, Cancer Research Advocate, Former Pro Soccer Player, Sports Broadcaster & TV Personality

Mary Roach

TED Speaker & Author Known for "Packing For Mars"

Dr. Paul Wolpe

Director of the Emory Center for Ethics

Dr. Lisa Masterson

OB/GYN, Mom, Philanthropist & Author; Known as Co-Host of "The Doctors"

Dr. Ian Smith

Doctor, New York Times Bestselling Author, Medical Contributor & Host of "The Doctors"

Rocco DiSpirito

James Beard Award-Winning Chef, Healthy Lifestyle Advocate & New York Times Bestselling Author

Drew Learns Chef Rocco Dispirito's 5-Minute Shrimp Dish