Here are 10 animals that have some of the highest levels of testosterone and the impact it has on their behavior and characteristics.

Add Yahoo as a preferred source to see more of our stories on Google. Man And Woman Face To Face A lagging libido in males is commonly attributed to a decline in testosterone, leading many men to hit ...

This article was reviewed by Darragh O’Carroll, MD. There’s a commonly held stereotype that men with high testosterone levels are aggressive beefcakes who are prone to “roid rage,” ready to throw a ...

High testosterone levels can drastically increase a man's risk of heart failure and stroke-causing blood clots, a new study reports. Men with a genetic predisposition to high testosterone levels have ...

Working collaboratively in small groups is one of the primary ways that modern humans accomplish anything. But what explains whether a group succeeds? Previous research on group dynamics has ...

Understanding the Testosterone-Acne Connection If you thought acne breakouts were only a teenage problem, think again.

Researchers found that unemployed men with medium to high testosterone levels were more likely than those with low testosterone to have found work by five months out. Getty Images For men, career ...

Researchers looking into the interplay between hormones and ethics discovered something that will shock nobody who dates men: that those with high testosterone levels end up being bigger jerks. The ...

Testosterone is a key hormone that affects muscle strength, mood, energy, and libido in both men and women—though it’s especially important for men as they age. Unfortunately, certain foods can ...

Masculine stereotypes tend to suggest that the manliest diets are ones high in protein. Manly men love meat, happily down raw eggs à la Gaston from Beauty and the Beast and fuel up on protein shakes ...