Michael’s Hospital, Department of Medicine, University of Toronto, a research scientist in the Keenan Research Centre, Li Ka Shing Knowledge Institute, and a research fellow at the Harvard Center for Population and Development Studies. He has a multidisciplinary background including biomedical engineering, epidemiology and public health, and a medical degree with specialization in general internal medicine. His research interests include the causes and consequences of the changing shape of chronic disease risk factor distributions at the population level, with special focus on body weight.