I know evolution is governed by chance and it is random but does it make sense to "ruin" sleep if there's light? I mean normally, outside, you never have pure darkness, there are the moon and stars even at night. In certain zones of the Earth we also have long periods of no sunshine and long periods of only sunshine....
As a fellow night owl that gets pretty deep into the late night, I've had the idea that it is actually good to have a small percentage of the population awake while most of the others sleep to help keep watch. I don't have any way to prove this, but it's something that I feel makes sense.
Regarding sleep quality, why did humans evolve to require full darkness?
I know evolution is governed by chance and it is random but does it make sense to "ruin" sleep if there's light? I mean normally, outside, you never have pure darkness, there are the moon and stars even at night. In certain zones of the Earth we also have long periods of no sunshine and long periods of only sunshine....