I hope someone can chime in if they know of any species of animals that historically hibernate during winter and become active during the summer in the Artic Circle where the sun does not set for weeks. Maybe an expert can also talk about nomadic cultures in a similar context.
A quick tangent: there is a psych study where participants willingly were placed in an artificial residence (possibly in a building or underground) and left inside for months without the ability to tell what time of day it was from external stimuli. Basically, humans (and I would assume almost all animals) have an internal circadian clock that regulates bodily functions. For some odd reason, ours tends to run around 25 hours per day (not 24).
Also, there are examples of cultures predominately taking naps or socializing at various times of day contrasted to other cultures e.g. Spain and Turkey. Old people start to sleep at odd hours and sometimes require less sleep too.
theUturn2Yz t1_iswqedt wrote
Reply to Is our sleep pattern based off the length of the day? by ebb5
I hope someone can chime in if they know of any species of animals that historically hibernate during winter and become active during the summer in the Artic Circle where the sun does not set for weeks. Maybe an expert can also talk about nomadic cultures in a similar context.
A quick tangent: there is a psych study where participants willingly were placed in an artificial residence (possibly in a building or underground) and left inside for months without the ability to tell what time of day it was from external stimuli. Basically, humans (and I would assume almost all animals) have an internal circadian clock that regulates bodily functions. For some odd reason, ours tends to run around 25 hours per day (not 24).
Also, there are examples of cultures predominately taking naps or socializing at various times of day contrasted to other cultures e.g. Spain and Turkey. Old people start to sleep at odd hours and sometimes require less sleep too.