A study has upended common beliefs, with implications for women and men of all ages.

Experts say testosterone is influenced by far more than genetics. Training style, sleep quality, nutrition, recovery, and ...

For years, women were told to train differently because of their hormones. New research suggests the fundamentals of building ...

Cortisol is bad. Testosterone makes you aggressive. Melatonin helps you sleep. Experts bust common hormone myths ...

Adam Katz always dreamed of being larger than life. "I knew I wanted to be bigger than what was naturally possible for most guys," the Arizona-based online fitness coach, who began bodybuilding at 14, ...

Hormone therapies promise to increase muscle mass and sex drive, while bringing down depression. But because of advertising claims and ideological elements, this means that only a minority of men who ...

Testosterone. Even the word alone sounds manly. For men, testosterone is important for drive, fertility, heart health, bone health, energy and mood — to name just a few benefits. When you have low ...

Federal officials may remove warnings on testosterone therapy drugs about heart and prostate risks, which could expand access ...