Testosterone the principle male sex hormone is needed for normal production of sperm cells.  Testosterone is secreted in testicles. A small amount...

•    Obesity: Recent studies have shown that obese men are more likely to have low testosterone than non-obese men. •    Testicle...

Testosterone is the principle male sex hormone and an anabolic steroid (anabolic steroids increase protein synthesis and build up muscles. They help...