A native of Nyack, New York, Dr. Glenn Langer studied at Colgate University and Columbia University. He was Professor of Medicine and Physiology at the UCLA School of Medicine for thirty-one years, combining clinical care with teaching, and was director of the UCLA Cardiovascular Research Laboratory. Langer has won numerous national and international awards in his several areas of expertise. The author of two hundred original research articles, he is a sought-after lecturer and public speaker who has appeared frequently on nationally televised talk shows. A board-certified internist and holder of the Castera Chair of Cardiology at UCLA, Dr. Langer is eminently qualified to explain the function of the human body and the complexities of disease. Thus his fourth published book—the first in a new, four-volume series on understanding health and illness in human organ systems.