Andrew Weil, MD, is the author of numerous bestselling books, including Spontaneous Happiness, Spontaneous Healing, Eight Weeks to Optimum Health, and Healthy Aging. A graduate of Harvard College and Harvard Medical School, he is professor of public health, clinical professor of medicine, and the Lovell-Jones Professor of Integrative Rheumatology at the University of Arizona as well as director of the University of Arizona Center for Integrative Medicine. He is also the editorial director of www.drweil.com, the leading Web resource for healthy living based on the philosophy of integrative medicine. He authors the popular "Self-Healing" newsletter and columns for Prevention magazine and is a frequent guest on numerous national talk shows. He lives in Arizona.