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Testosterone actually peaks around age 20 and gradually declines after that, accelerating around age 30. By 40, it's been falling for a long time.

by marvin 12y ago

adventured 12y ago
I'm finding vast disagreement over whether testosterone peaks at 20 or closer to 40. Can you provide some good sources? Some sources show it declining drastically from 20 to 40 (by as much as 90%), others claim it peaks between 35-40 and gradually declines. It seems to be all over the map. For example: "Studies show that most men experience a 2% drop-off in testosterone production each year after they turn 30." http://www.askmen.com/daily/austin_150/155_fashion_style.html http://www.askmen.com/daily/austin_150/155_fashion_style.htm... "Testosterone Does Not Necessarily Wane With Age" http://www.medicalnewstoday.com/articles/247013.php http://www.medicalnewstoday.com/articles/247013.php "Testosterone levels peak in the mid-20s for both men and women. For women, who have about 1/10 to 1/20 the amount of testosterone that men have, testosterone levels taper off slowly until they plateau around the age of 45. For men, testosterone levels continue to wane into their 70s. By the time women reach menopause, their testosterone levels are about half of what they were in their 20s. Men's testosterone levels decrease by about 1% per year and then drop faster as they approach older age." http://articles.latimes.com/2011/may/02/health/la-he-midlife-libido-20110502 http://articles.latimes.com/2011/may/02/health/la-he-midlife...
- danieltillett 12y ago
  I know from personal experience that testosterone peaks much closer to 20 than 40.
- atom-morgan 12y ago
  I don't have sources on hand but I recently had my testosterone levels checked at a TRT office and they seemed to agree it's highest in your 20s and decreases after that. It was why they were so surprised to have me (24) getting my testosterone levels checked. Most of their clientele are men in their 30-40s+.
- marvin 12y ago
  Interesting, thanks. My sources are no better than yours; it was news to me to hear that there is disagreement over this.

Testosterone actually peaks around age 20 and gradually declines after that, accelerating around age 30. By 40, it's been falling for a long time.

by marvin 12y ago

Testosterone actually peaks around age 20 and gradually declines after that, accelerating around age 30. By 40, it's been falling for a long time.

adventured 12y ago

I'm finding vast disagreement over whether testosterone peaks at 20 or closer to 40. Can you provide some good sources? Some sources show it declining drastically from 20 to 40 (by as much as 90%), others claim it peaks between 35-40 and gradually declines. It seems to be all over the map. For example: "Studies show that most men experience a 2% drop-off in testosterone production each year after they turn 30." http://www.askmen.com/daily/austin_150/155_fashion_style.html http://www.askmen.com/daily/austin_150/155_fashion_style.htm... "Testosterone Does Not Necessarily Wane With Age" http://www.medicalnewstoday.com/articles/247013.php http://www.medicalnewstoday.com/articles/247013.php "Testosterone levels peak in the mid-20s for both men and women. For women, who have about 1/10 to 1/20 the amount of testosterone that men have, testosterone levels taper off slowly until they plateau around the age of 45. For men, testosterone levels continue to wane into their 70s. By the time women reach menopause, their testosterone levels are about half of what they were in their 20s. Men's testosterone levels decrease by about 1% per year and then drop faster as they approach older age." http://articles.latimes.com/2011/may/02/health/la-he-midlife-libido-20110502 http://articles.latimes.com/2011/may/02/health/la-he-midlife...

danieltillett 12y ago
I know from personal experience that testosterone peaks much closer to 20 than 40.
atom-morgan 12y ago
I don't have sources on hand but I recently had my testosterone levels checked at a TRT office and they seemed to agree it's highest in your 20s and decreases after that. It was why they were so surprised to have me (24) getting my testosterone levels checked. Most of their clientele are men in their 30-40s+.
marvin 12y ago
Interesting, thanks. My sources are no better than yours; it was news to me to hear that there is disagreement over this.