#sleepscience
#shortsleepgene
#neurogenic

"She is sometimes asked why short sleepers are so rare: wouldn’t evolution reward individuals who spend less of their lives unconscious? But she speculates that such a trait only became prized in modern times. “Before electricity, there was no advantage to being a short sleeper in darkness,” she said."

https://www.newyorker.com/culture/annals-of-inquiry/why-some-people-thrive-on-four-hours-of-sleep