This article was reviewed by Darragh O’Carroll, MD. Key Takeaways: Testosterone’s reputation for causing anger and aggression ...

“Exploring testosterone in affiliative social interactions gives us insight into the vast role that neuromodulators can play beyond these historic groupings. For instance, testosterone’s ability to ...

This article was reviewed by Felix Gussone, MD. Key Takeaways: Testosterone does more than drive puberty. It influences drive ...

When animals rise in social status, their testosterone levels increase as well. This change produces the increased confidence that accrues to social status as well as increased aggression. Some ...

LONDON (Reuters Life!) - Testosterone makes people behave badly, but only because of our own prejudices about its effect, not its true biological action, scientists said on Tuesday. A Swiss and ...

Despite drug's health risks, users laud improved looks and energy boost. Sept. 18, 2012 — -- From world-class sporting scandals in baseball and on the track, performance-enhancing drugs seem to ...

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, ...

WASHINGTON (Reuters) - Younger chief executives with high testosterone levels may be more likely to try a hostile takeover -- and to get burned in the attempt, Canadian researchers said on Wednesday.

There are three morphs in ruffs that differ in their appearance and mating behavior. Males of the aggressive Independents (left) have more testosterone in their blood than the other two morphs (a male ...