Dominique Dawes

Olympic Gold Medal-Winning Gymnast, Former Co-Chair of President Obama's Council on Fitness, Sports & Nutrition

Derek Hough

Dancer, Emmy Award Winner for Outstanding Choreography & Five-Time Mirror Ball Champion of ABC's "Dancing with the Stars"

Daniel Kahneman

Retired Professor of Psychology & Public Affairs at Princeton University, Author

Michelle Obama

Former First Lady of the United States & Bestselling Author

The Light We Carry: Overcoming in Uncertain Times

Nicholas Carr

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

Esther Dyson

Executive Founder of Way to Wellville

Bob Harper

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

Joy Behar

Comedian, Actress & Former Co-Host of "The View"

Joy Bauer

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

TODAY Nutritionist Joy Bauer Discusses The Best Diets

Dr. Mehmet Oz

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

Zonya Foco

Celebrity Nutritionist & Cookbook Author

Aubrey de Grey

Biomedical Gerontologist; Chief Science Officer of SENS Research Foundation; Researcher on Preventing Aging

Cat Cora

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

Trisha Yearwood

Country Music Artist, Two-Time New York Times Best-Selling Cookbook Author

Rocco DiSpirito

Celebrity Chef, Cookbook Author, & TV Personality

Noam Chomsky

Professor of Linguistics and Philosophy at MIT & Foreign Policy Author

Gloria Feldt

Leading Activist & Best-Selling Author

Gloria Feldt, Co-Founder/President Of Take The Lead

Nelson George

Author / Filmmaker

Lorena Garcia

Celebrity Chef, Restaurateur, TV Host

Robert Hormats

Vice Chairman of Kissinger Associates Inc.