Genetics play a role in low testosterone for some men, but underlying causes vary widely. Many genes influence testosterone ...

The Trump administration and Health and Human Services Secretary Robert F. Kennedy Jr. are flipping the pyramid upside down.

Total testosterone measures the full amount of the hormone in your blood, while free testosterone represents the small, ...

Everyone produces testosterone, regardless of sex. Not only is it a pivotal hormone in development (particularly for males) and for masculine characteristics, it's also essential for muscle growth, ...

In a recent review published in the Nutrients, a group of authors reviewed the use of natural polyphenolic compounds to enhance testosterone production and prevent age-related hypogonadism in aging ...

Starting around age 40, many men notice the first physical changes that may be related to their hormone levels: Energy wanes ...

Q. You recently wrote that testosterone does not increase the risk for heart attacks. But you overlooked the real risk of ...

For those who need it—men who have low levels of testosterone with symptoms such as low energy, a low libido, and depression, ...

When a woman or man wins a bet, when their team wins a football game, they experience a surge in testosterone (not only a male hormone) and a spurt of happiness. What does this tell us about our ...