The list of bad things that can happen from depriving yourself of sleep is significant, from memory loss to irritability to a higher risk for getting sick.
But in case none of those convince you of the importance of shut-eye, try this on for size.
For men, the less sleep you get, the more attracted you’ll be to unattractive women.
According to a Hendrix College study:
After remaining awake for the next 24 hours, the students rated the photos again. Men increased their ratings of the least attractive women and decreased their ratings of moderately attractive women. Women, on the other hand, didn’t change their ratings of any of the men. Men also expressed more interest in having casual sex with the least attractive women and less interest in having casual sex with the moderately attractive women after being sleep-deprived.
So yes, science now shows that the more sleep deprived you are, the more likely you are to snog with someone you may regret.
In other words, get some sleep—you won’t regret it.