Sandro Galea is a physician and an epidemiologist. He is the Anna Cheskis Gelman and Murray Charles Gelman Professor and Chair of the Department of Epidemiology at the Columbia University Mailman School of Public Health. During his tenure as Chair, the Department of Epidemiology has launched several new educational initiatives and has substantially increased its focus on five core areas: chronic, infectious, life course, psychiatric/neurological, and social epidemiology. Galea’s primary research has been on the causes of mental disorders, particularly common mood-anxiety disorders and substance abuse, and on the role of traumatic events in shaping population health. His research program seeks to uncover how determinants at multiple levels of influence—including policies, features of the social environment, molecular, and genetic factors—jointly produce the health of urban populations. Galea has conducted large population-based studies in several countries worldwide including the US, Spain, Israel, Ethiopia, Tanzania, and Liberia, primarily funded by the National Institutes of Health. Galea’s interest in the complex etiology of health and disease has led him to work that explores innovative methodological approaches to population health questions primarily funded by a Robert Wood Johnson Health Policy Investigator Award. Galea has published more than 350 scientific journal articles, 50 chapters and commentaries, and 7 books. Galea did his graduate training at the University of Toronto Medical School, at the Harvard University School of Public Health, and at the Columbia University Mailman School of Public Health. Prior to his arrival at Columbia Galea was on faculty at the University of Michigan. Several media outlets including The New York Times, NPR, and NBC have featured Galea’s work. He was named one of TIME magazine’s epidemiology innovators in 2006. Galea is President-Elect of the Society for Epidemiologic Research.