Beauty and your sleep: Study spells out the science behind beauty rest
Beauty and your sleep: Study spells out the science behind beauty rest
Sleep-Deprived Individuals Appear Less Healthy and Attractive, Study Finds
Swedish researchers say there's an important link between sleep and your physical appearance. In a study published today (Dec.15,2010) in the British Medical Journal, researcher John Axelsson and his team at the Karolinska Institute in Stockholm found that sleep-deprived individuals appear less healthy, more tired, and less attractive than those who have received a full night's worth of sleep.
"Sleep is the body's natural beauty treatment," Axelsson said. "It's probably more effective than any other treatment you could buy."
Subjects Photographed Before and After Sleep Deprivation
In the study, 23 healthy adults from ages 18 to 31 were first photographed after eight hours of sleep, wearing no makeup. The same adults were photographed again after sleeping only five hours and being kept awake for a full 31 hours, with the same lighting and camera settings.
The photos were rated by 65 untrained observers who graded the images in these three categories -- how healthy, attractive, and tired the individuals appeared. On the whole, the participants were judged to be worse-off after sleep deprivation, in all categories, and the scientists believe the effects would be even more dramatic in person, when factors like blink rate and drowsiness could be observed.
Only one photo set was publicly released from the sample, showing a young man. After sleep deprivation, his eyes seem duller and the skin under his eyes appears puffy.
While the effects in Axelsson's research were observed after severe sleep deprivation, he says his team will soon tackle whether an occasional short night of sleep can also cause problems. This experiment called for severe deprivation because the scientists wanted to maximize any effects.
"We cannot really say when the effects start ... if it's six hours or five hours, but it probably starts gradually," Axelsson said. "It's possible that you get these effects through chronic sleep deprivation as well,"
Study Prompted by Daughter's 'Sleeping Beauty' Question
The idea of beauty rest is ingrained in popular culture, but it's apparently never been put to the test by science. Axelsson said his young daughter gave him the reason to take on the subject. She was watching the classic animated film "Sleeping Beauty" when she had a question.
"My daughter asked me, why is the sleeping beauty so beautiful? Is it because she sleeps a lot?" Axelsson recalled. "As a scientist, I couldn't answer, so I had to do a study."
The Swedish research team says its findings have implications beyond looking good. Axelsson said that the findings could be important for doctors, who should familiarize themselves with the sleep history of a patient to provide a more precise diagnosis.
Plenty of research points to the importance of a good night's sleep. Over the years, studies have found links between poor sleep and Alzheimer's disease, depression, and even weight gain. In 2008, the Centers for Disease Control found that 50 to 70 million Americans suffer from constant sleep loss or sleep disorders, and the number of people averaging six hours of sleep or less was on the rise.
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