Mayim Bialik

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

Laila Ali

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

Laverne Cox

Award-Winning Transgender Actress, Producer & Equal Rights Advocate

Alice Waters

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

Nastia Liukin

Olympic Gold Medal Gymnast

Keke Palmer

Actress & Youngest Talk Show Host in TV History

Robert Cialdini

New York Times Best-Selling Author; The Foundational Expert in the Science of Influence & Persuasion

Jillian Michaels

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

Candace Cameron Bure

Women & Youth Speaker Best Known for Her Role on "Full House" & "Fuller House"; Former Co-Star on "The View"

Jessica Alba

Actress; Entrepreneur; Founder & CEO of The Honest Company

Rachael Ray

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

Bert Jacobs

Co-Founder & Chief Executive Optimist of Life is Good

Jodie Sweetin

Entrepreneur, Actress, Producer & Author

Sheryl Lee Ralph

Actress, Broadway Singer & Producer; Known for "Abbott Elementary"

Maria Menounos

CEO & Co-founder of AfterBuzz TV; Former E! News Co-Anchor; Best-selling Author, Journalist & Type-1 Diabetic

Michael J. Fox

Actor, Author and Advocate; Founder, The Michael J. Fox Foundation for Parkinson’s Research

Michael J. Fox on latest Parkinson's research and how he's ...

Gretchen Rubin

New York Times Best-Selling Author of "The Happiness Project;" Host of Podcast "Happier with Gretchen Rubin"

Gretchen Rubin - Knowing Yourself: Why You're Happy and You ...

Tim Ferriss

Angel Investor & Author of "The 4-Hour Workweek"

Bobby Flay

Chef & Host of "Throwdown With Bobby Flay" and "America's Next Great Restaurant"

John Mackey

Co-Founder & CEO, Whole Foods Market