It doesn't sound weird, sounds human. https://en.wikipedia.org/wiki/Circadian_rhythm#Biological_clock_in_mammals https://en.wikipedia.org/wiki/Circadian_rhythm

It doesn't sound weird, sounds human. https://en.wikipedia.org/wiki/Circadian_rhythm#Biological_clock_in_mammals https://en.wikipedia.org/wiki/Circadian_rhythm#Biological_cl...