Dr. Michael Roizen was born January 7, 1946 in Buffalo, New York. He is an anesthesiologist and Chair of anesthesiology, critical care, and pain management at the Cleveland Clinic. Dr. Roizen received his undergraduate degree from Williams College and his M.D. from the University of California, San Francisco. Dr. Roizen's interest and research in longevity and nutrition led him to create the "RealAge" concept for which he is well-known. He later began writing the "You" series books with Dr. Mehmet C. Oz which have been New York Times bestsellers. Dr. Roizen has given over 1200 lectures to professional medical groups and can often be seen on the Oprah Winfrey show, Today Show, Good Morning America, and fundraising specials with PBS. His latest book You (Raising Your Child) made the New York Times best seller list for 2010. (Bowker Author Biography)

Dr. Mehmet C. Oz was born in Cleveland, Ohio on June 11, 1960. He received his undergraduate degree from Harvard University. He holds a joint MD and MBA from the University of Pennsylvania School of Medicine and The Wharton School. Dr. Oz is a professor of Cardiac Surgery at Columbia University. He also directs the Heart Assistance Device Program and is founder of the Complementary Medicine Program at New York - Presbyterian Hospital. Dr. Oz is the award-winning author of Healing from the Heart. His "You" series books, written with Dr. Michael F. Roizen, have been on the New York Times bestseller list. Dr. Oz can often been seen on the Discovery Channel, the Oprah Winfrey show, and is a regular contributor to the 24/7 XM Satellite Radio: Oprah & Friends channel. Dr. Oz was named Time Magazine's 44th "Most Influential Scientist and Thinker" in 2008. Dr. Oz is married to author and Reiki master, Lisa Oz. They have four children. (Bowker Author Biography)