Assertion: magnesium's deficiency | /r/CapableOf | play role
Facets:
value: in neurotransmitter release
type: OTHER
value: in vasoconstriction
type: LOCATION
Source sentences:
text: Migraines and other types of headaches are often promoted by a deficiency in magnesium, which plays a role in neurotransmitter release and vasoconstriction.