Esther Dyson

Executive Founder of Way to Wellville

Bob Harper

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

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

Joy Bauer

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

Joy Behar

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

Dr. Mehmet Oz

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

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

Robert Hormats

Vice Chairman of Kissinger Associates Inc.

Maria Popova

Editor of Brain Pickings; Author of "Figuring"

Laurie Garrett

One of America's Premier Authorities on Healthcare and Disease Prevention

Jonathan Safran Foer

Bestselling Author of "Everything Is Illuminated" and "Extremely Loud and Incredibly Close"

Sara Horowitz

Founder & Executive Director of Freelancers Union

Kay Redfield Jamison

International Authority & Researcher On Mental Illness

David Ho

Scientific Director & CEO, Aaron Diamond AIDS Research Center

Bonnie Bassler

Bonnie Bassler studies how bacteria can communicate with one another, through chemical signals, to act as a unit. Her work could pave the way for new, more potent medicine.

Jake Cohen

New York Times Bestselling Cookbook Author of "Jew-ish" & "I Could Nosh"

Dr. Billy Goldberg

Emergency Medicine Physician & Author of "Why Do Men Have Nipples? Hundreds of Questions You'd Only Ask a Doctor After Your Third Martini"

MeMe Roth

Anti-Obesity Activist & Founder of the National Action Against Obesity

Garrett Oliver

Brewmaster at Brooklyn Brewery, Author & Editor-in-Chief of The Oxford Companion to Beer

Beer Expert Guesses Cheap vs Expensive Beer

Laurence Steinberg

Adolescence Expert, Age of Opportunity Author & Professor of Psychology at Temple University

Age Of Opportunity: Lessons from the New Science of Adolescence

Clifford Hudis

Chief Executive Officer, American Society of Clinical Oncology