The Virility Factor: Masculinity Through Testosterone, the Male Hormone

An estimated TWELVE MILLION MEN suffer testosterone deficiency. Others fall victim to excess production. Yet, THE VIRILITY FACTOR is the ONLY book for laymen devoted to testosterone & its effects on the body, personality & sexuality. LIBRARY JOURNAL named THE VIRILITY FACTOR one of the 100 best science books of the year. PENTHOUSE FORUM: "Even as he lucidly unveils the complexities of testosterone, Bahr slips in interesting sidelines, such as information on men's annual sex cycle &…