TESTOSTERONE
WHAT IS TESTOSTERONE ? Testosterone is the primary sex hormone and anabolic steroid in males . [3] In humans, testosterone plays a key role in the development of male reproductive tissues such as testes and prostate , as well as promoting secondary sexual characteristics such as increased muscle and bone mass, and the growth of body hair . [4] In addition, testosterone in both sexes is involved in health and well-being, including moods, behavior, and in the prevention of osteoporosis . [5] [6] Insufficient levels of testosterone in men may lead to abnormalities including frailty and bone loss. Testosterone is a steroid from the androstane class containing a ketone and a hydroxyl group at positions three and seventeen respectively. It is biosynthesized in several steps from chol...