There is a great deal of medical research on Hormone Replacement.
I’m suggesting several good books that you can pick up at the bookstore. Dr. R. LeConey
Stopping the Clock, author Dr. Ronald Klatz Grow young with HGH, author: Dr. Ronald Klatz Brain Fitness, author: Dr. Ronald Goldman The Anti-Aging Zone, author: Dr. Barry Sears The Testosterone Syndrome, author: Dr.Eugene Shippen The Sexy Years, author: Suzanne Somers Natural Hormone Balance for Women, author: Dr. Uzzi Reiss