Fellas, it turns out that if you ever want to obtain a smidgen of beer-fueled confidence while flirting with a girl, you may not even have to buy a brew.
A new study on 60 male and female university students found that when men had a terrible night's sleep, they tended to make the same mating mistakes as when they were drunk. As in, they tended to think a woman was more interested in them then they actually were.
Researchers asked all participants, "When a woman goes out to a bar, how likely is it that she is interested in finding someone to have sex with that night?" Turns out, men rated a woman's sexual interest as higher after a bad night of sleep, with an average rating of 17.5 versus 13.5.
Apparently, researchers claim the same effect happens when a man is intoxicated. "Sleep deprivation could have unexpected effects on perceptual experiences related to mating and dating that could lead people to engage in sexual decisions that they might otherwise not when they are well-rested," lead researchers Jennifer Peszka told the Daily Mail.
Of course, only men were affected this way; researchers found that while men's perception of sex peaked while sleepy, sleepiness did not affect any female's idea of sex. So sorry sleep-deprived boys; you're out of luck.