Our happy hour fact to amaze your drinking buddies with.

A study reveals the profile of Americans most likely to lose their cool.

In a survey of 1,800 adults, researchers found that three core stresses -- time pressure, economic hardships and conflict at work -- trigger the majority of angry outbursts. They also uncovered that those under 30, as well as the less educated, are more likely to fulminate in reaction to these stresses.

Having kids also seems to up the typical American's blood pressure. While rugrats can get to both sexes, they are more likely to make women want to scream.

But before you even think about bailing on parenthood in the interest of your sanity, remember, having kids is the best excuse for keeping video games in your home well into your calmer middle age.