Assertion: melatonin | /r/CapableOf | regulate circadian rhythm
Facets:
value: in humans
type: OTHER
Source sentences:
text: Melatonin is a hormone that is naturally produced by the body to help regulate the circadian rhythm, or the sleep-wake cycle.
text: Melatonin is a hormone that regulates sleep, wakefulness, and circadian rhythms in humans.