Erika Rees-Punia, Ph.D., MPH is a senior principal scientist for the American Cancer Society. Dr. Rees-Punia is an exercise physiologist by training and leads research on the promotion and benefits of physical activity in cancer survivors. She leads a randomized exercise trial of 400 cancer survivors embedded within the Cancer Prevention Study-3 (CPS-3) Cohort, leads the CPS-II Medicare linkage, and co-leads the CPS-3 Accelerometer Sub-Study, with the goal of collecting waist-worn accelerometer data on 20,000 participants. Dr. Rees-Punia co-leads the National Cancer Institute Cohort Consortium Physical Activity Pooling Project Workgroup and is a part of the Associate Member Council for Early-Stage Investigators. Dr. Rees-Punia finished her PhD in 2018 at the University of Georgia.