Testosterone is an important hormone. It helps men develop during puberty, and as they age, it plays a critical role in helping control fat levels, cholesterol, and glucose levels. Testosterone ...

Getting a high testosterone reading offers bragging rights for some men of a certain age, and may explain in part the appeal of testosterone supplements. But once you are within a normal range, does ...

A study published in the American Journal of Human Biology suggests that Western medical standards for male testosterone might not reflect the natural variation found in different environments.

Add Yahoo as a preferred source to see more of our stories on Google. Testosterone may be a key indicator of men's heart health and longevity, new research suggests.andreswd/Getty Images A study of 24 ...

As the national election draws near, observers have commented on every aspect of the candidates' appearance, including raising questions regarding their testosterone (T) levels. One of the more ...

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What are normal testosterone levels by age? An older photographer mentors a younger one. Testosterone is an important hormone. It helps men develop during puberty, and as they age, it plays a critical ...