When does testosterone reach its peak in men?

Testosterone levels reach their peak in twenty to thirty year old males and decline with each passing decade. In men, low testosterone levels have been linked to:

  • Decreased sex drive
  • Impotency
  • Infertility
  • Abnormal breast enlargement
  • Fatigue
  • Depression
  • Lowered motivation
  • Irritability
  • Weight gain
  • Decreased body hair
  • Shrinking of the testes
  • Anemia
  • Thinning of the skin with increased wrinkle development
  • Decreased muscle size and strength
  • Increased risk for osteoporosis and prostate cancer

At puberty and throughout the reproductive years, approximately twenty times more testosterone is produced in males than in females.


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