Mark Hyman is the director of the Cleveland Clinic Center for Functional Medicine. He is also the founder and medical director of the UltraWellness Center. He’s a practicing family physician and a best-selling author. James Gordon is the founder and executive director of the Center for Mind-Body Medicine and a clinical professor in the departments of Psychiatry and Family Medicine at Georgetown Medical School. Penny George is the board chair of the Penny George Institute Foundation, which supports the work of the Penny George Institute for Health and Healing at Allina Health in Minneapolis, the largest hospital-based integrative medicine program in the U.S. This interview is edited and produced with music and other features in the On Being episode “Penny George, Mark Hyman, and James Gordon — The Evolution of Medicine.”