Shannon Miller

Olympic Gold Medalist, Health Advocate & Cancer Survivor

Josh Linkner

Serial Entrepreneur, New York Times Best-Selling Author & Venture Capital Investor

Giuliana Rancic

Entertainment Journalist & Breast Cancer Survivor

Katty Kay

Award-Winning Journalist & Anchor; NYT Best-Selling Author; US Special Correspondent for BBC & MSNBC Contributor

Daniel Kraft, M.D.

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

Ali Vincent

First Female Winner of "The Biggest Loser"

David Agus

Co-Founder of Navigenics, Author of "The End of Illness" & Host of "The Checkup with Dr. David Agus"; Professor of Medicine & Engineering at the University of Southern California

The Book of Animal Secrets

Sherry Lansing

Former CEO of Paramount Pictures & Founder of The Sherry Lansing Foundation

Jack Andraka

Machine Learning Engineer at Stanford Vision and Learning, Cancer Researcher & National Geographic Emerging Explorer

Joan Lunden

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

Ian Morrison

Healthcare Futurist and Author

Amy Robach

Co-Host of "Amy & T.J. Podcast"; Former Co-Host of "20/20" & Former ABC News Correspondent for "Good Morning America;" Breast Cancer Survivor

Chade Meng Tan

Chief Happiness Officer, Google; Award-winning Entrepreneur and NYC Best-Selling Author

Geralyn Lucas

Breast Cancer Survivor & Author of "Why I Wore Lipstick: To My Mastectomy"

Dara Torres

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

Ross Shafer

Six-Time Emmy Award-Winning Comedian, Business Researcher, TV Host & Bestselling Author

Philip Zimbardo

Psychologist Known for the Notorious '1971 Stanford Prison Experiment;' Researcher of the Psychology of Heroism, Evilness and Time

Dan Harris

Award-Winning ABC News Anchor & #1 New York Times Best-Selling Author

Gail Wilensky

Economist, Healthcare Policy Reform Expert & Senior Fellow at Project Hope

Jan Ping

Breast Cancer Survivor, Emmy Award-Winning Hair & Makeup Artist

Behind the Glam: Secrets from an Emmy-Winning Makeup Artist