Testosterone is a naturally occurring steroid hormone. Despite its status as a steroid, prescription testosterone replacement ...

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, ...

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You’ve probably heard rumors that testosterone makes men gain weight. The truth? It’s usually the opposite. Healthy testosterone levels actually help men maintain lean muscle, manage fat, and minimize ...

Cate Hall’s sex drive tanked when she hit 40. After months of trying—and failing—to boost it, she read a pamphlet in a doctor’s office about the effects of low testosterone in women, including low ...

Building muscle depends on several factors and isn't something that'll happen overnight after just one workout.

Testosterone is the primary androgen — or male hormone — in your body. Low testosterone affects up to 39 percent of adult men in the US over the age of 45, and becomes increasingly prevalent as men ...

Testosterone is a hormone produced mainly in the testicles (and in smaller amounts in ovaries and adrenal glands) that helps regulate muscle growth, energy, sex drive, mood, and overall reproductive ...