The Testosterone Edge
O'Neill, Brian / Schlegel, Peter N.
The ultimate guide to boosting your sex drive, fighting fatigue, and getting your best body-now in paperback.It's testosterone, not tattoos, that make a man a man. Everyone knows that the hormone is responsible for the male sex drive and for years, bodybuilders have tried to boost testosterone to build muscle. Now scientists are uncovering the role testosterone plays in erectile dysfunction, depression, osteoporosis, and even heart disease. As...