In addition, for several figures we will further split the housing-cost burden into. moderately housing-cost burden (30.0 to 49.9 percent of income spent on housing costs) and severely housing-cost burden (50% or more of income spent on housing costs).
Testosterone is the primary male sex hormone and an anabolic steroid. In men, testosterone plays a key role in the development of male reproductive tissues such as the testis and prostate, as well as promoting secondary sexual characteristics such as increased muscle and bone mass, and the growth of body hair.
Testosterone is the principal male sex hormone (androgen) secreted by the testes, starting at puberty. (In women, the adrenal glands and ovaries produce small amounts.) Levels begin to plateau at around age 40, and gradually decrease to one-fifth the peak level at age 80. Estrogen: