1994 Pew Biomedical Scholar Gary H. Gibbons, M.D., director of the NIH's National Heart, Lung, and Blood Institute, and 2012 Pew Biomedical Scholar Kathryn E. Wellen, Ph.D., a specialist in cancer metabolism and epigenetics from the University of Pennsylvania discuss the impact that being a Pew Biomedical Scholar has had on their lives and careers.