Our happy hour fact to amaze your drinking buddies with.

Alcohol leads to violent behavior among those who suppress feelings of anger and frustration when sober.

Researchers at the Swedish Institute for Social Research and Norwegian Institute for Alcohol and Drug Research surveyed about 3,000 Norwegian 16-to-22-year-olds on both their drinking habits and their tendency to suppress feelings of anger. They discovered that those who don't deal with feelings of rage when sober are 10 percent more likely to drink to intoxication and 5 percent more likely to get violent when they drink. There was no link between alcohol and violence among those who are able to vent their anger normally when sober.

"Only a tiny fraction of all drinking events involve violence," the researchers concluded. "And whether intoxicated aggression is likely to occur seems to depend on the drinker's propensity to withhold angry feelings when sober."

Although it might be tempting, we can't recommend trying to explain this finding to a friend who's getting violent because he's had too many. We're pretty sure that will just make it worse.