Question

what are testosterone?

Answer 1

Testosterone is the primary male sex hormone. In male humans, testosterone plays a key role in the development of male reproductive tissues such as testes and prostate, as well as promoting secondary sexual characteristicssuch as increased muscle and bone mass, and the growth of body hair. In addition, testosterone is involved in health and well-being and the prevention of osteoporosis. Insufficient levels of testosterone in men may lead to abnormalities including frailty and bone loss.

Answer 2

a steroid hormone that stimulates development of male secondary sexual characteristics, produced mainly in the testes, but also in the ovaries and adrenal cortex.