May 18, 2017 (Los Angeles Times) -- You know the drill: You haven't had a good night's sleep for a few days and now you don't like what you see in the mirror - puffy eyelids, dark circles, sallow skin.
You splash some water on your face and hope no one notices. Besides, it doesn't really matter if you look tired, you tell yourself. It's not like anyone is going to notice, right?
It turns out that just two consecutive nights of restricted sleep can make you appear less attractive to others and, even worse, make them less interested in hanging out with you, according to a study in Royal Society Open Science.
"People seem to be able to tell when someone needs more sleep, and are more inclined to leave them alone in that case," the authors wrote in the new work.