Lawrence J. Cheskin, MD, is an adjunct professor of medicine at Johns Hopkins School of Medicine and Professor of Nutrition and Food Studies at George Mason University's College of Public Health. He is the author of Healing Heartburn and Losing Weight for Good: Developing Your Personal Plan of Action. Kimberly Anne Gudzune, MD, MPH, is an associate professor of medicine at Johns Hopkins School of Medicine, where she is the director of Johns Hopkins Healthful Eating, Activity & Weight Program.