The Secrets Hidden in Biological Rhythms
Aug 2025 · GM Kids Series 576 Book 447 · GOS Education Inc.
Ebook
35
Pages
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About this ebook
The Sun is the main factor that influences our circadian rhythm.
Humans are active during the day and sleep at night.
If humans were in a dark cave where they could not tell the time, would they only sleep?
Not at all! Humans fall asleep and wake up on a 24-hour cycle, no matter what the outside environment is like.
The Sun is the main factor that influences our circadian rhythm.
Humans are active during the day and sleep at night.
If humans were in a dark cave where they could not tell the time, would they only sleep?
Not at all! Humans fall asleep and wake up on a 24-hour cycle, no matter what the outside ...
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