Male testosterone levels begin to decrease at age 30, with a more noticeable decline of approximately 1% per year starting at age 40.

Authors

• Person: Not available Organization: London Andrology
  Andropause, fact or fiction? Men's menopause signs and treatment

Sources

• Andropause, fact or fiction? Men's menopause signs and treatment london-andrology.co.uk London Andrology via serper

Referenced by nodes (1)

• testosterone concept