Jillian Michaels

Leading Fitness Expert, Certified Nutritionist, Renowned Life Coach & Powerful Entrepreneur

Dr. Mehmet Oz

Cardiothoracic Surgeon; Host of "The Dr. Oz Show;" Columbia University Professor & Author

Daphne Oz

Emmy Award-winning Television Host, New York Times Bestselling Author, Chef & Entrepreneur

Nastia Liukin

Olympic Gold Medal Gymnast

Lisa Leslie

WNBA Champion, Olympic Gold Medalist & Author of "Don't Let the Lipstick Fool You;" Coach of Ice-Cube's BIG3 Basketball League

Laila Ali

Undefeated Four-Time World Champion Boxer & Lifestyle Expert; Heart Disease Awareness Advocate

Michelle Obama

Former First Lady of the United States & Bestselling Author

Mayim Bialik

Neuroscientist, Mental Health Advocate & Actress Known for "The Big Bang Theory"

Montel Williams

Emmy Award-Winning Talk Show Host; Multiple Sclerosis Survivor; Health Equity & Veteran Advocate

Dr. Dean Ornish

Physician, Leading Researcher in Healthcare, Founder of the Preventive Medicine Research Institute & Bestselling Author

Diana Nyad

World Champion Swimmer, Storyteller, Sports Journalist & Broadcaster

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Cat Cora

World-Renowned Chef, Author, Restaurateur, Contributing Editor, Television Host, Actress, Avid Philanthropist, Health and Fitness Expert & Lifestyle Entrepreneur

Joy Bauer

Nutrition and Health Expert on NBC's "Today Show" & Founder of Nourish Snacks

Marco Borges

Exercise Physiologist, Founder of 22 Days Nutrition, Author & Beyonce's Personal Trainer

Pau Gasol

NBA Power Forward, Two-Time NBA Championship Winner, UNICEF Ambassador

Dr. Jennifer Ashton

Board-Certified Ob-Gyn, Author & TV Medical Correspondent

Andie MacDowell

Film Actress

Bob Greene

Exercise Guru & Best-Selling Author

Dr. Jill Bolte Taylor

Scientist, Author & CEO of My Stroke of Insight, Inc.

Alice Waters

Executive Chef, Founder & Owner of Chez Panisse; Sustainable Agriculture Advocate

Sherri Shepherd

Actress, Comedian, Former Co-host of "The View" & Host of the "Two Funny Mamas" Podcast

Dr. Michael Roizen

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

Rachael Ray

Chef, Cookbook Author & Television Host Known for the "Rachael Ray Show"

Kathy Ireland

CEO & Chief Lifestyle Designer of Kathy Ireland Worldwide; Supermodel & Health Advocate

Kathy Ireland - Anatomie interview

Juliet Funt

Founder, Owner & CEO of WhiteSpace at Work

Mike Ditka

Pro Football Hall of Famer, Three-Time Super Bowl Champion & Retired Coach of NFL's Chicago Bears

Pat Croce

Mega-Entrepreneur & Former NBA Team Owner

Dan Buettner

National Geographic Writer, Renowned Explorer & Author of "Blue Zones"

Tunde Oyeneyin

Peloton Instructor & Makeup Artist; Founder of SPEAK Instagram Live Series

Amy Purdy

Former "Dancing with the Stars" Contestant & Paralympic Professional Snowboarder