From what I heard, that's not true. Due to some ancient group of people being "on guard duty", while others not, the night owls seems just to derive from that g

From what I heard, that's not true. Due to some ancient group of people being "on guard duty", while others not, the night owls seems just to derive from that group of people that was on guard duty. Guaranteed this is a just a voice I heard, it explains why my grandfather, my mother, me and my daughter all wake up late and prefer going to bed late. And to be clear, we adapted to the sleep time of my daughter, not the opposite (it's the only way to get sleep as a parent)