Published: October 07, 2018
The optimum amount of sleep is supposed to be eight hours a night. Why is shuteye so important – and what happens if we don’t get enough?
“The only known function of sleep is to cure sleepiness,” the Harvard sleep scientist Dr J Allan Hobson once joked. This isn’t quite true, but the questions of why we spend about a third of our lives asleep and what goes on in our head during this time are far from being solved.
Continue reading...from The Guardian https://ift.tt/2O8WWUh
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