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... ld control their internal clock because of their thorough training. The body’s internal clock referred to the variation of one’s circadian rhythm, which was synchronized to the one-millimeter diameter suprachiasmatic nucleus. The nucleus was located just above the hypothalamus, where the optic nerves connecting the retinas of both eyes intersected.
The suprachiasmatic nucleus would detect sunlight entering the eye in the morning and send a signal to the pineal gland. Upon receiving the s ...
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