Assertion: melatonin | /r/CapableOf | tell the brain
Facets:
value: to be active
type: PURPOSE
value: essentially
type: MANNER
Source sentences:
text: It helps our bodies maintain healthy sleep-wake cycles, where melatonin essentially tells the brain,
text: As your body’s central clock, melatonin tells your body, brain and organs when to be active and when to take a break and rest.
text: Melatonin is more of a “darkness” signaler, telling the brain it is time to prepare for sleep.