Welcome to Testosterone HQ—Men's Health's guide to the exciting, complicated, and revolutionary world of testosterone. For everything you need to know about T, click here. While research is mixed on ...

WASHINGTON — Too much testosterone can kill brain cells, researchers said Tuesday in a finding that may help explain why steroid abuse can cause behavior changes like aggressiveness and suicidal ...

Contrary to popular belief, having higher levels of testosterone doesn't necessarily make men have a higher libido. Day-to-day changes in testosterone levels were discovered to have no real link to ...

One problem with theories which start with genes and then go on to try to explain complex mental outcomes such as psychosis or autism in the way in which the imprinted brain theory does is that they ...

Hone Health reports that seasonal affective disorder may be influenced by hormone imbalances, affecting mood and energy ...