(Our happy hour fact to amaze your drinking buddies with.)

A new study shows that a man's testosterone level will increase while talking to a woman, regardless of whether he finds the woman desirable.

Researchers took saliva samples from male subjects between the ages of 21 and 25. After a five-minute conversation with a woman they had never met, testosterone levels shot up an average of 7.8 percent, but showed no correlation with how attractive the male rated the female.

It is also theorized that rising levels of the hormone may contribute to men telling women exaggerated stories about their jobs, education and earnings.

Considering testosterone is primarily secreted by the testes, this is proof it's not the booze talking -- it's the balls.