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What is testosterone?

August 26, 2019


Testosterone is a chemical substance known as a hormone and it can have quite wide-ranging effects through the body and that’s because it’s released into the bloodstream and therefore it can go around the body in the blood circulation and affect a wide range of organs. Testosterone is made in males in Leydig cells in the testes. There’s also a small amount made in the ovaries in females, and in both sexes is made in the adrenal glands which sits on top of the kidneys. Now, the release
of testosterone is controlled by a group of structures called the hypothalamic-pituitary-adrenal axis, and these include the hypothalamus in the brain, the pituitary gland at the base
of the brain, and the adrenal glands on top of the kidneys. The release of testosterone generally occurs in two quite big surges in the body and these happen at around seven weeks of fetal development, and that’s associated with the development of the male genitalia, and it happens again at around age twelve and that’s associated with puberty. So as well as those physical characteristics, the release of testosterone is also associated with larger body bills, increased muscle mass and more and more bodily
hair. But it’s also associated with some interesting psychological characteristics as well, and these include, greater aggression, more dominant behaviour, but also really interesting
behaviour known as risk-taking. Get more from The Open University. Check out the links on screen now.

3 Comments

  • Reply Geneviève Barbeau March 16, 2019 at 11:46 pm

    Testosterone is worth more than quizosterone.

  • Reply Deck Chair on the Titanic July 8, 2019 at 2:18 am

    The testosterone-crazed should be castrated & muzzled.

  • Reply Screw The Net July 18, 2019 at 10:12 am

    And is there an estrogen video on this channel? Didnt see it. And does it say the opposite of this one? Would that mean that since mean are testosterone fueled, that are time, due to our " risk taking" nature, we are paradoxically both good and bad drivers, whereas women as just slow and annoying drivers? Science cant be WRONG!!! RIGHT?! >,;,<

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