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

New U.S. dietary guidelines for the first time include advice for men on maintaining healthy testosterone levels.

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 ...

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

People might think of the NSFW when it comes to testosterone, but there are other symptoms if you have lower levels ...

Medically reviewed by Danielle Weiss, MD PCOS is the most common cause of high testosterone in women, affecting about 10% ...

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

At last year’s CES, Eli Health announced the Hormometer — an at-home hormone test for cortisol that utilized saliva and a ...

Everyone's talking about testosterone lately, but do we really know what it is? It's a hormone produced primarily in the ...