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 ...

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 ...

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 ...

Testosterone is one of the few hormones that’s broken out of biology textbooks and into the popular consciousness. For years it has been a shorthand for all things stereotypically male—ever notice how ...

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

Scroll through any social media app right now, and you’ll find teenage boys and men in their early 20s debating testosterone levels. Some champion “testosterone maxxing, which means naturally ...

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, ...