Sound Sleeper? Thank Your Brain Waves - FoxNews.com
Sleep spindles occur during stage 2 sleep, the period after dozing off and before deep sleep. To find out if these scribbles of activity influence the stability of sleep, study researcher Thien Thanh Dang-Vu, a postdoctoral researcher at Harvard Medical School and Massachusetts General Hospital, and his colleagues used electroencephalography (EEG). EEG uses electrodes on the scalp to measure electrical activity in the brain.
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