id author title date pages extension mime words sentences flesch summary cache txt en-wikipedia-org-2113 Testosterone - Wikipedia .html text/html 18471 3910 55 Testosterone is the primary sex hormone and anabolic steroid in males.[3] 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 characteristics such as increased muscle and bone mass, and the growth of body hair.[4] In addition, testosterone is involved in health and well-being,[5] and the prevention of osteoporosis.[6] Insufficient levels of testosterone in men may lead to abnormalities including frailty and bone loss. It is biosynthesized in several steps from cholesterol and is converted in the liver to inactive metabolites.[7] It exerts its action through binding to and activation of the androgen receptor.[7] In humans and most other vertebrates, testosterone is secreted primarily by the testicles of males and, to a lesser extent, the ovaries of females. 7,8-DHF, 8-prenylnaringenin, apigenin, baicalein, baicalin, biochanin A, calycosin, catechin, daidzein, daidzin, ECG, EGCG, epicatechin, equol, formononetin, glabrene, glabridin, genistein, genistin, glycitein, kaempferol, liquiritigenin, mirificin, myricetin, naringenin, penduletin, pinocembrin, prunetin, puerarin, quercetin, tectoridin, tectorigenin) ./cache/en-wikipedia-org-2113.html ./txt/en-wikipedia-org-2113.txt