Testosterone is the primary androgen — or male hormone — in your body. Low testosterone affects up to 39 percent of adult men in the US over the age of 45, and becomes increasingly prevalent as men ...

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

We include products we think are useful for our readers. If you buy through links on this page, we may earn a small commission. Here’s our process. An at-home testosterone test can help people monitor ...

This article was reviewed by Felix Gussone, MD. If you’ve been feeling a bit more couch potato than go-getter lately, dragging through the day, snapping at people for no reason, or wondering where ...

"Hearst Magazines and Yahoo may earn commission or revenue on some items through these links." WORKING OUT REGULARLY has a profound effect on all aspects of your health, including your heart and ...

It was only when Rob’s relationship had deteriorated to the brink of collapse that he finally went to his GP. “Life was just not going well for me, I was badly underperforming at work, going to the ...

If you’ve been feeling less energetic at the gym, at work, or in your day-to-day life, perhaps you have low testosterone levels. Having low testosterone doesn’t have to be a life sentence. Many men ...