Dr. Duncan’s academic training is in physical education (BS, 1992, East Stroudsburg University of Pennsylvania) and exercise physiology (MS, 1994, Ball State University; PhD, 1997, University of Tennessee). Following graduate school, he completed postdoctoral research training (1998-2002) and then joined the faculty at the University of Florida (2002-2003), both in the Department of Medicine, Division of Endocrinology and Metabolism. He joined the Core Faculty of the Nutritional Sciences Program, Department of Epidemiology, University of Washington in July 2003. In June 2015, he accepted a position as Professor in the newly established Elson S. Floyd College of Medicine, and Chair of the Nutrition and Exercise Physiology program at Washington State University – Health Sciences Spokane, where the Washington State Twin Registry is administratively housed. His major focus is related to macro-level influences (built environment, social environment, policies) on physical activity, nutrition, and chronic disease within an ecological framework.