Add Yahoo as a preferred source to see more of our stories on Google. Reeder explains that testosterone is far more involved than you would first think -- it plays are part in everything from muscle ...

No amount of sleep is enough. Sex is much less interesting than it used to be. You wonder if you have depression. At work, you aren’t as sharp as you used to be, and struggle to focus throughout the ...

Chopping wood isn’t a walk in the park, and lumberjacks bulk up those muscles by felling trees, cutting logs, and transporting heavy lumber. Historically, lumberjacks used axes and hand saws, and many ...

Testosterone is an important male hormone. It does a lot for your body, and it wears several different hats. From your bone strength and muscle mass to your intimacy drive and mood, research has ...

Know how zinc can boost testosterone levels and increase men's energy through natural food sources and supplements.

New U.S. dietary guidelines for the first time include advice for men on maintaining healthy testosterone levels.

Historically, testosterone has been associated with masculinity. Someone having high levels of testosterone was shorthand for perceived higher levels of aggression, strength, and libido. However, ...

For those who need it—men who have low levels of testosterone with symptoms such as low energy, a low libido, and depression, ...

A study published in the American Journal of Human Biology suggests that Western medical standards for male testosterone ...

Q. You recently wrote that testosterone does not increase the risks for heart attacks. But you overlooked the real risk of testosterone therapy: cancer!