Researchers at the Karolinska Institute in Stockholm, Sweden, say if you get a full eight hours of sleep, you look better than if you’ve been awake on a 30-hour bender.
The researchers wanted to test the concept of “beauty sleep.” They took photographs of volunteers waking up after a nice eight hours of sleep, and then took photos after the volunteers stayed up for 31 straight hours.
When other people rated the photos, they almost always said the sleep-deprived photo looked less healthy and less attractive.
It really doesn’t answer the age old question… what if you sleep 6 hours a day every day? It’s not the same as staying awake for 40 hours straight!