Technically, yes, testosterone is a steroid hormone. But it’s not the kind of steroid that gets high-performing athletes stripped of their titles. Rather, testosterone replacement therapy (TRT) is a ...

The treatment has become increasingly popular, especially among older men. Here is what to keep in mind if you are considering it. By David Dodge Testosterone therapy has exploded in recent years.

Testosterone is being hailed as the secret to better energy, mood, and sex drive. Here’s what experts say about when it actually does help—and when it doesn’t. Women naturally produce testosterone, a ...

For more than 80 years, men have been told that testosterone helps prostate cancer grow. But a very different picture has emerged over the past two decades. The prostate is a small gland that sits ...