Assertion: melatonin | /r/CapableOf | help regulate circadian rhythm
Facets:
Source sentences:
text: Melatonin helps regulate the circadian rhythm so we sleep at night and stay alert during daylight hours.
text: It is a naturally occurring molecule in the body that helps regulate circadian rhythms.
text: Melatonin helps regulate the sleep-wake cycle and other circadian rhythms.