On Understanding Sleep

Scientists find what controls waking up and going to sleep. The latest finding from an Indian-American circadian rhythms expert at Northwestern University is that he has discovered how an animal’s biological clock wakes it up in the morning and puts it to sleep at night. In a study of brain circadian neurons that govern the daily sleep-wake cycle’s timing, doctor Ravi Allada and his team found that high sodium channel activity in these neurons during the day turn the cells on and ultimatel...
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