Testosterone can foster friendly, prosocial behavior in males, a new animal study finds. The work also revealed how testosterone influences the neural activity of oxytocin cells -- the so-called 'love ...

“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 ...

A new study published in Evolution and Human Behavior provides evidence that human body odor may act as a subtle cue for social status. The research suggests that men with higher levels of ...

The study involving 120 women also showed that so entrenched are beliefs about the sexual hormone that people who believe they have been given a dose behave aggressively even if they have only ...

Toxic masculinity is a major societal concern. It is said that testosterone from the testes makes men overly aggressive. But the biology of hormones and aggression is not that simple. A symposium ...

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 ...

The common assumption about testosterone is that it makes us more aggressive and competitive. But is this the entire story? Perhaps the effect of testosterone on behavior depends on our social rank.

Up to 25% of males may have low or sub-optimal testosterone levels. Andropause is the term used to describe middle-aged males ...

Once a year, adult male Asian and African elephants go through musth, or a period when their reproductive hormone levels—including testosterone—surge, and they act more aggressive and unpredictable.

A single gene that regulates testosterone levels in a 'crazy' species of shore bird controls the development of three wildly different types of males, a new study has found. Ruffs have long fascinated ...

Musth, a time of heightened testosterone levels and aggression in male elephants related to reproduction, has now been identified in woolly mammoth tusks. Remarkably, this is the first time hormones ...

Testosterone can foster friendly, prosocial behavior in males, a new animal study finds. The Proceedings of the Royal Society B published the research on Mongolian gerbils conducted by neuroscientists ...