Margaret Lock is an internationally renowned pioneer in the field of medical anthropology. Professor emerita at McGill University, she has produced research that focuses on the relationships among culture, medical practices, technological innovation and the human body. Her groundbreaking research in Japan and North America into midlife aging transformed thinking in the social sciences about the relationship of biology and culture. She is also highly regarded for her comparative research into organ transplantation. Her recent work deals with aging and dementia and the prediction of risk for Alzheimer's disease. A thought-provoking mentor, she continues to influence a generation of scholars.