Loretta DiPietro is a Professor in the Department of Exercise and Nutrition Sciences, the Milken Institute School of Public Health at The George Washington University. Dr. DiPietro received her training in epidemiology at Yale University. For nearly three decades, her research has focused on physical activity, and she has worked very hard to combine the two disciplines of epidemiology and physiology to better understand the mechanistic underpinnings of the benefits of exercise. Dr. DiPietro is recognized internationally as a leader in the field of physical activity and aging. An accomplished and widely published researcher, she has been awarded numerous grants from the National Institutes of Health and the American Cancer Society, and has been invited to lecture around the world. She is a current Fellow of the American College of Sports Medicine and the Editor-in-Chief of the Journal of Physical Activity and Health. In 2016, Dr. DiPietro was appointed to the United States Department of Health and Human Services 2018 Physical Activity Guidelines Advisory Committee and serves as the Chair of the subcommittee on Aging. In June of 2017, she received the American College of Sports Medicine Citation Award for her career accomplishments. Dr. DiPietro is a former Epidemic Intelligence Service (EIS) Officer in the Commissioned Corps of the United States Public Health Service. She joined the GW SPH in 2008 from Yale University School of Medicine, where she was associate professor of epidemiology and public health and an associate fellow at the John B. Pierce Laboratory.