Slumbering Fruit Flies Shed Light on Genetics of Sleep Needs

Amount of sleep one needs is genetical. Potassium ion's concentration could affect sleep in humans.

From sleep hogs to early birds, people have a wide range of shut-eye needs. Now researchers report in the journal Nature that they have identified a single gene in fruit flies that determines how much rest the creatures require. Because humans carry a similar gene, the findings may shed light on the mechanisms and functions of sleep...

Read more in Scientific American