William Regelson, M.D. is a professor at the Virginia Commonwealth University College of Medicine, in Richmond. A specialist in medical oncology, with joint appointments in microbiology and biomedical engineering, he has been a leading researcher in the field of aging for more than twenty-five years. He is the former scientific director of the Fund for Integrative Biomedical Research, which was dedicated to research on the biology of aging. Dr. Regelson is also co-author of the cutting-edge, best-selling books The Melatonin Miracle and The Super-Hormone Promise related to age decline in hormones necessary for reproductive health and the avoidance of debility and dependency.