Assertion: melatonin's effect | /r/HasProperty | investigated
Facets:
Source sentences:
text: However, because beta-blockers suppress endogenous nighttime melatonin secretion, that possibly explains the reported side effect of insomnia; the effect of nightly melatonin supplementation in hypertensive patients treated with beta-blockers was investigated.
text: So far, side-reported effects of melatonin include dizziness and headaches but long-term use of melatonin sleep aids has yet to be investigated.