Stephen K. Grinspoon, M.D., is the Associate Professor of Medicine, the Clinical Director of the Neuroendocrine Clinical Center at Massachusetts General Hospital; the Program Director for Metabolism, Division of Endrocrinology also at Massachusetts General Hospital; and the Assistant Director of the General Clinical Research Center at Massachusetts Institute of Technology.

In his presentation, Dr. Grinspoon discusses successes and controversies regarding testosterone supplementation for men.