Testosterone levels naturally decline with age, but some measures may slow or reverse the process. They include staying active, getting enough sleep, and limiting alcohol use. Some supplements may ...

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 ...

Testosterone affects many aspects of your health, from sexual function to disease risk. You may be able to increase your levels naturally by lifting weights and getting more of certain nutrients.

Testosterone is the key male sex hormone. Its functions include regulating fertility, muscle mass, fat distribution, and red blood cell production. When levels of testosterone drop below levels that ...