Tyler VanderWeele, Ph.D., is Professor of Epidemiology at the Harvard School of Public Health. He holds degrees in mathematics, philosophy, theology, finance and biostatistics from the University of Oxford, the University of Pennsylvania and Harvard University. His research principally concerns methodology for distinguishing association and causation in the social and biomedical sciences. He has done empirical research in perinatal, genetic, and psychiatric epidemiology, throughout the social sciences, and most recently in studying religion and health, including the study of the role of religion and spirituality in end-of-life care and of the mechanisms governing the associations between religion and health. He has a grant from the Templeton Foundation to promote research on the interface between health and religion at the Harvard School of Public Health.