Testosterone is the primary sex hormone in humans, it plays a key role in the development of male reproductive tissues such as testes and prostate and woman both, as well as promoting secondary sexual characteristics such as increased muscle and bone mass and body hair for man.
In addition, testosterone is involved in health and well-being and in the prevention of osteoporosis in both sexes. Insufficient levels of testosterone in men may lead to abnormalities including frailty and bone loss.
Testosterone -has pronounced anabolic properties: increases muscle mass, accelerates protein synthesis, increasing recovery rate and the supply of glycogen in muscles etc.