Assertion: melatonin's level | /r/CapableOf | drop in the morning
Facets:
value: inversely
type: MANNER
Source sentences:
text: This chemical is closely related to our sleep cycle since it tends to fluctuate in response to our natural cycles, i.e., in the morning the levels drop, while they rise in the evening, as we prepare for sleep.
text: Inversely, levels drop in the morning when it is light out, helping you feel more relaxed before bed.