In a lifetime of service, Dr. Richard Carmona has held almost every job in health care in the civilian sector and military, to include, being a distinguished university professor and United States surgeon general. Dr. Liponis is a board-certified specialist in internal medicine, and is Chief Medical Officer of Canyon Ranch, where he has worked for the past 23 years. He is a featured expert speaker on health topics, and author of three books (UltraPrevention, Ultralongevity, and The Hunter-Farmer Diet Solution). He has also published original research on the use of natural medicines in treating stomach infections. Dr. Liponis is a clinician, and sees patients on a daily basis at Canyon Ranch.