We’ve evolved to sleep less and that may be causing Alzheimer’s

日期:2019-03-01 06:06:03 作者:暨厶 阅读:

Jack Berman/Getty By Jessica Hamzelou The 7 hours of sleep we typically get every night often doesn’t feel like enough. Compared with our fellow primates, which spend around 12 hours of each day slumbering, humans barely get any shut-eye. It seems we have evolved to limit how long we sleep, and that may simply be because we have more important things to do with our time, says Charles Nunn at Duke University in North Carolina. However,