Very few of us actually get 8 hours of sleep regularly….
Well….A new study out says that you should relax….
Your body probably doesn’t need all that…
We should be able to get alone fine with what most people get….
About 6 hours of sleep….
In an intriguing study published in Current Biology this week, researchers traveled to remote corners of the planet to scrutinize the sleep patterns of some of the world’s last remaining hunter-gatherers — the Hadza of Tanzania, the San of Namibia, and the Tsimane of Bolivia. Cut off from electricity, media and other distractions, these pre-industrial societies are thought to experience the same sort of natural sleep ancient humans enjoyed more than 10,000 years ago.
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What they found was a striking uniformity in their sleep patterns despite their geographic isolation. On average, all three groups sleep a little less than 6.5 hours a night, do not take naps and don’t go to sleep when it gets dark. Like many of us, the Hazda, San and Tsimane spent more than that in bed — from 6.9 to 8.5 hours than actually sleeping. That computes to a sleep efficiency of between 81 to 86 percent — which is very similar to today’s industrial populations.
Jerome Siegel, director of the University of California at Los Angeles’s Center for Sleep Research, and his colleagues explained that this suggests that sleep may not be environmental or cultural, but “central to the physiology of humans” living in the tropical latitudes where our species evolved.
“The short sleep in these populations challenges the belief that sleep has been greatly reduced in the ‘modern world,’ ” Siegel said. “This has important implications for the idea that we need to take sleeping pills because sleep has been reduced from its ‘natural level’ by the widespread use of electricity, TV, the Internet, and so on.”
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