More than 85% of mammalian species are polyphasic sleepers, - TopicsExpress



          

More than 85% of mammalian species are polyphasic sleepers, meaning that they sleep for short periods throughout the day. Humans are part of the minority of monophasic sleepers, meaning that our days are divided into two distinct periods, one for sleep and one for wakefulness. It is not clear that this is the natural sleep pattern of humans. Young children and elderly persons nap, for example, and napping is a very important aspect of many cultures.
Posted on: Sat, 26 Oct 2013 17:06:56 +0000

Trending Topics



Recently Viewed Topics




© 2015