Assertion: melatonin's cycle | /r/HasProperty | circadian rhythm
Facets:
Source sentences:
text: Our bodies have their own internal clocks that help regulate the natural cycle of sleeping and waking hours (circadian rhythm) by controlling the production of melatonin.
text: The sleep-wake cycle is only one of many circadian rhythms.
text: Our bodies have their own internal clocks that help regulate the natural cycle of sleeping and waking hours (circadian rhythm) by controlling the production of melatonin.
text: This cycle is the circadian rhythm that ensures you sleep at night and wake up in the morning.
text: These cycles are the circadian rhythm.