Testosterone is the most important hormone in a male's sex drive. It is produced by the testes in the testes. In the male penis, testosterone is released into the blood stream from a gland called the testicle (testicle). Testosterone levels increase in men of all ages.
The male hormone is also produced by another gland called the prostate gland. It is a large gland located at the base of the penis. Its job is to make clear, fluid-filled tubes that carry blood from the testes to the genitals. The male hormone can also be manufactured by the adrenal gland. It has two parts – the adrenal cortex and adrenal medulla. The adrenal cortex contains the chemical precursors of sex hormones. The adrenal medulla helps deliver the hormone from the adrenal cortex to the testes. The hormones of the adrenal cortex have been found to be important for bone density, and other physical, sexual and emotional traits. In fact, women who have more than 10% of their adrenal medulla is considered to be extremely sexy. There are also men who have greater adrenal gland, which is a more sensitive gland. This can be the result of a gene mutation or because they are born with it. In some cases, the testes produce very little testosterone.