Dr. Felicia Cosman is a physician specializing in osteoporosis research. After graduating from Cornell University and Stony Brook Medical School, she received internal medicine training and completed her endocrinology fellowship at Columbia Presbyterian Medical Center. In 1988, she moved to Helen Hayes Hospital, becoming an osteoporosis specialist, clinical scientist, and medical director of the Clinical Research Center. Dr. Cosman's research focuses on the causes of osteoporosis and how the female hormone estrogen and drugs called SERMS treat osteoporosis. She also investigates experimental treatments, including parathyroid hormone, and studies the causes of stress fractures in military cadets. Her research has been funded by the National Institutes of Health, the Department of Defense, and the National Multiple Sclerosis Society, along with several pharmaceutical companies. She serves on the editorial board of Osteoporosis International and regularly reviews for the Journal of Clinical Endocrinology and Metabolism, Journal of Bone and Mineral Research, and Calcified Tissue International. Since 1996, she has been the clinical director for the National Osteoporosis Foundation and has been an associate professor of clinical medicine at Columbia University since 1997.