This article was reviewed by Kelly Brown, MD. Whether you played a sport in high school, college or even at the professional ...

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 ...

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 ...

Dr. Jamin Brahmbhatt is a urologist and robotic surgeon with Orlando Health and an assistant professor at the University of Central Florida’s College of Medicine. You’re feeling unusually tired and ...

Testosterone, the primary sex hormone in men, plays a vital role in male reproductive development and function, as well as other functions like bone density and muscle mass. Testosterone levels ...

Dr. Sapolsky is a neuroscientist and primatologist. I was observing a 9-year-old male baboon in the Serengeti of East Africa one day in 1983. Baboon troops are very hierarchical, and this baboon was a ...