Testosterone is much more than a sex hormone. There are testosterone receptor sites in cells throughout the body, most notably in the brain and heart. Youthful protein synthesis for maintaining muscle mass and bone formation requires testosterone.
Testosterone improves oxygen uptake throughout the body, helps control blood sugar, regulates cholesterol, and maintains immune surveillance. The body requires testosterone to maintain youthful cardiac output and neurological function. Testosterone is also a critical hormone in the maintenance of healthy bone density, muscle mass, and red blood cell production.
