Brain’s Learning Ability Seems to Recharge During Light Slumber - Health News - Health.com

Your brain’s ability to learn may get recharged during the light, dreamless slumber that accounts for up to half of your night’s sleep, according to a new study.

Researchers at the University of California, Berkeley conducted tests on 44 healthy young adults and found strong evidence that bursts of brain waves called sleep spindles may network between important regions of the brain to clear a path to learning.

These spindles — which are fast pulses of electricity that are generated during non-rapid eye movement (REM) sleep and can occur up to 1,000 times per night — help to transfer fact-based memories from the brain’s hippocampus to the prefrontal cortex’s “hard drive.”

This enables the hippocampus, which has limited storage space, to take in fresh data, the researchers explained.

via news.health.com

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Can dentists give relief to snorers — and their bed mates? - Healthzone.ca

It wasn’t so much the snoring, or her husband’s frequent retreats to the spare room, that caused Yvonne Paech to wake up to the fact she had a serious sleep disorder.

It was her 6-year-old granddaughter: She found it hard to nap with her grandma at the cottage because of all the noise.

The most worrisome wake-up call, however, came in a letter. It warned Paech, 68, that she could lose her drivers’ license if she didn’t get help.

“That’s the first time I thought, this is bigger than just snoring.”

And so Paech embarked on a quest to bring quiet to her North York bedroom. Today, it has led her to what might seem like the strangest place of all: a dentist’s office.

via healthzone.ca

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Beauty and Sleep Deprivation: The Science Behind Beauty Rest - ABC News

Swedish researchers say there's an important link between sleep and your physical appearance. In a study published today 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.

via abcnews.go.com

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