Marc Weisskopf is the Mark and Catherine Winkler Assistant Professor of Environmental and Occupational Epidemiology in the Department of Environmental Health at the Harvard School of Public Health. He received his PhD in neuroscience from the University of California, San Francisco, and his ScD in epidemiology from the Harvard School of Public Health. His research interests are in how environmental factors affect the nervous system, and in the epidemiology of neurological disorders. Dr. Weisskopf was recently the recipient of the American Federation for Aging Research--New York Academy of Sciences--General Electric Healthcare Neuroimaging Prize for Junior Investigators.