Dr. Kahn is Professor of Growth and Development, University of California, San Francisco School of Dentistry and a member of the Longevity Consortium, a multi-institutional group focused on the genetics of aging. Dr. Kahn joined the UCSF in 1989 and was Chair of the Department of Growth and Development for the initial five years. In 1996 and again in 2002, Dr. Kahn was visiting professor at the Hebrew University in Jerusalem. Prior to UCSF, Dr. Kahn was Professor of Pediatrics and Director of the Pediatric Research Institute at St. Louis University. Dr. Kahn was also on faculty at Syracuse University and at the Washington University in St. Louis where he served as Chair of the Department of Biomedical Sciences at the School of Dentistry. Dr. Kahn has served on several editorial boards including the Journal of Gerontology. He has published more than 200 papers, abstracts and book chapters and his current major research interests are in biomarkers of aging, and the genetics of aging and longevity. Dr. Kahn did his undergraduate and master's degrees work at the University of Louisville and took his PhD at Columbia University, New York.