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What Low Testosterone Does to Your Body

Testosterone Through the Ages

Testosterone is the defining hormone for boys and men. It's responsible for male traits. Your body starts making testosterone when you're still in the womb. Testosterone production rises until about age 17. Then it starts to slowly fall in middle age. By age 80, your testosterone level will be half of what it once was. However, not having enough testosterone can affect you at any age.

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Medically Reviewed By: William C. Lloyd III, MD, FACS | Last Review Date:

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Medical References

  1. Barkin J. Erectile dysfunction and hypogonadism (low testosterone). The Canadian Journal of Urology. 2011;18(Supplement 1):2-7. 
  2. Wang C, et al. Low Testosterone Associated With Obesity and Metabolic Syndrome Contributes to Sexual Dysfunction and Cardiovascular Disease Risk in Men With Type 2 Diabetes. Diabetes Care. 2011 Jul;34(7):1669-75.
  3. Evaluating Infertility. American College of Obstetricians and Gynecologists.
  4. Crosnoe LE, et al. Exogenous testosterone: a preventable cause of male infertility. Transl Androl Urol. 2013 Jun;2(2):106-13. 
  5. Hormone replacement, the male version. Harvard Health Publications
  6. Amore M, et al. Partial Androgen Deficiency, Depression, and Testosterone Supplementation in Aging Men. Int J Endocrinol. 2012; 2012: 280724.
  7. Osteoporosis in Men. National Institutes of Health. National Institute of Arthritis and Musculoskeletal and Skin Diseases.
  8. Low Testosterone and Men's Health. Hormone Health Network.

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