Michael F. Roizen, MD, is the four-time #1 New York Times bestselling author and co-founder and originator of the popular RealAge.com website. He is Chief Wellness Officer and chair of the Wellness Institute of the Cleveland Clinic and Chief Medical Consultant to The Dr. Oz Show. He currently lives in Shaker Heights, Ohio.

Mehmet Oz, MD, is a cardiothoracic surgeon. He has won nine Daytime Emmy Awards for The Dr. Oz Show. A professor of surgery at Columbia University, he directs the Complementary Medicine Program at New York—Presbyterian Hospital and performs more than fifty heart operations a year. Dr. Oz has written eight New York Times bestselling books, including Food Can Fix It, YOU: The Owner’s Manual, YOU: The Smart Patient, YOU: On a Diet, YOU: Staying Young, and the award-winning Healing from the Heart.

LISA Oz is a housewife living in New Jersey. She also moonlights as a writer, producer and entrepreneur. With her husband, Dr. Mehmet Oz, she has raised four children, coauthored five New York Times best-selling books, including YOU: The Owner’s Manual series, and cohosted a daily radio show on Sirius/XM, yet is somehow unable to organize her closet or stick to a diet.