Beauty sleep is a real thing, researchers find

GETTY- STOCK IMAGEEven losing a few hours a night can be detrimental to our physical appearance

The study published by Royal Society Open Science Journal suggests that those who do not get a proper night's sleep appear less attractive to those around them.

Using 25 University students, some female and some male, Swedish researchers found that when participants appeared visibly exhausted they were less likely to be approached by strangers or friends. One week later, subjects were asked to restrict their sleep to just 4 hours on 2 consecutive nights. They were also asked to rate participants' attractiveness, health, sleepiness, and trustworthiness.

They also found that those rating "were less inclined to socialize with individuals who had gotten insufficient sleep", even rating them as less healthy than those who had slept properly.

"An unhealthy-looking face, whether due to sleep deprivation or otherwise, might activate disease-avoiding mechanisms in others", researchers from Sweden's Karolinska Institute said. After that, they were photographed by the researchers.

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"A healthy, attractive face is characterized by a certain degree of redness, which in turn is indicative of increased vasodilation and vascularization", they write. It can even put people off socialising with you, reports the BBC.

The team discovered that the strangers successfully identified whether subjects on photos were sleep deprived.

Those who have restricted sleep are less attractive to others, says a new study. These are small tweaks, but they can help you nab more sleep and change how the world perceives you.

Professor John Axelsson, co-author of the study, said people in the study were less likely to socialise with tired-looking women. Perhaps when we don't get enough sleep, that results in restricted blood flow to the skin, which in turn would make us look more pale and exhausted. "The reasons for avoiding people who look sleepy may include the fact that sleepy individuals are at a higher risk for accidents, or more prone to be carriers of contagious pathogens, or aspects making them less socially rewarding to be around", the researchers explain. If you're struggling to get enough sleep, she recommends stopping work on your phone or computer an hour before bed, keeping your bedroom just for sleeping, and trying to have regular sleep hours.

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