Find Out Why Humans Sleep

A Duke University team is providing a window into why humans sleep, by studying hibernation. Observations of a little-known primate called the fat-tailed dwarf lemur in captivity and the wild has revealed that it goes for days without the deepest part of sleep during its winter hibernation season. The findings support the idea that sleep plays a role in regulating body temperature and metabolism. Despite decades of research, why we sleep is still a ...