Assertion: serotonin | /r/HasProperty | key
Facets:
value: to gut functions
type: TRANSITIVE-OBJECT
Source sentences:
text: Serotonin is also key to gut functions which, if you read any of our articles, is key to health!
text: Known by many scientists as the "happy" neurotransmitter, serotonin is key to helping relay signals from one part of the brain to another.