Our happy hour fact to amaze your drinking buddies with.

women blinded by jealousyThe vision of some women becomes impaired when they know their partner is checking out other females.

University of Delaware researchers had heterosexual couples sit in front of adjacent computer screens, which were separated by a curtain. The men were told to rate the attractiveness of landscape scenes, while the women were asked to identify certain landscapes when they flashed by. The catch -- or so the women thought -- was that unpleasant images were interspersed among the landscapes.

Halfway through the experiment, however, the researchers switched gears and announced that the males would be rating pictures of attractive females. Suddenly many of the women -- who had previously had no problem picking out the landscapes -- started to completely miss the scenes when they scrolled by. It was as though they were literally not seeing what was in front of their eyes.

Being that guys who check out hot women can also be blind to everything else, it's actually a wonder that people in relationships don't all go around constantly bumping into things.