Humans need less sleep than other primates

Duke University researchers found that humans evolved to have shorter, more efficient sleep duration than other mammals, possibly as a result of moving toward sleeping in groups around a fire. The scientists evaluated the sleep patterns of 21 primate species including baboons, lemurs, orangutans and people, finding that humans sleep the least — an average of seven hours per night — but spend more time in REM sleep than other primates. The findings were reported in Evolutionary Anthropology. (12/15), Tech Times (12/15)

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