Do you think that there is a complex relationship between sunshine hours and human behavior?
Yes. The people in polar regions were the sun is down for 6 months have higher instances of suicide, depression, and murder.
Definitely. A circadian rhythm is any biological process that displays an endogenous, entrainable oscillation of about 24 hours. These 24-hour rhythms are driven by a circadian clock, and they have been widely observed in plants, animals, fungi, and cyanobacteria. Circadian rhythmicity is present in the sleeping and feeding patterns of animals, including human beings. There are also clear patterns of core body temperature, brain wave activity, hormone production, cell regeneration, and other biological activities.
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