Source: BMJ It's the same person, but people rated the photo on the left as more attractive than the photo on the right.
You've heard the term 'beauty sleep.' Well, now Swedish researchers say they can prove it's a scientific fact.
According to a study published in the British Medical Journal, the the more sleep you get, the more attractive you appear to others.
"The term beauty sleep is definitely true. Beauty sleep could be a good average night's sleep, and if you don't get that, then you're probably getting something that would be the opposite of beauty sleep," said Dr. Stephen Bajo, the Medical Director of Renown's Cosmetic and Laser Clinic.
Take a look at the photo above. It's the same person, but people consistently rated the photo on the left as more attractive. In that photo, the subject is well rested. In the photo to the right, he had been kept awake for 31 straight hours.
"You can see the differences, and they're really not that subtle once you look. The mouth, definitely a difference in the mouth, he looks happier and more alert there, puffiness under the eyes, his eyes are less open," said Dr. Bajo, in reference to the photo.
The study found that when you cut back on ZZZ's, people can tell.
"With sleep deprivation, people definitely look more tired, appear less attractive, and appear less healthy," said Dr. Bajo.
The study focused on a younger age group, 18-31 year olds, but Dr. Bajo says the results of not getting enough sleep could be even more visible on older subjects.