Our happy hour fact to amaze your drinking buddies with.

Men who struggle to control their emotional responses also have trouble regulating their sexual arousal.

Researchers set up an experiment in which male volunteers watched 16 video clips, which alternated between funny and erotic. For certain videos the participants were asked to try to control their responses. (Yes, a machine that measures erections was used.) During the erotic videos they were attempting not to be aroused by, the men showed a 25 percent reduction in overall erections.

What's interesting is that the men who couldn't keep it down when asked turned out to be the same ones who couldn't help but laughing when told not to respond to the funny clips. In fact, among those with the poorest impulse control, attempting to regulate arousal/laughter made it "worse" than when they weren't asked to.

What would be even more interesting (and science we could use) is if the same holds true for women. If so, guys would inevitably start scoping the bar for the easily amused.