Testosterone is an important hormone. It can boost libido, increase muscle mass, sharpen memory, and bump up energy. Yet, most men lose testosterone with age. A reported 20 to 40 percent of older men ...

Testosterone boosters are over-the-counter supplements that claim to raise levels of the hormone in the body and reduce symptoms of low testosterone. However, there is not enough evidence to confirm ...

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.

The testicles and ovaries produce testosterone. Producing too little or too much testosterone can affect your physical and mental health. Testosterone is a hormone found in humans, as well as in other ...