Assertion: periwinkle | /r/CapableOf | help improving blood circulation
Facets:
value: in the brain
type: LOCATION
Source sentences:
text: While the lesser periwinkle helps improving blood circulation especially in the brain, the greater periwinkle is used for treating anxiety or nervousness and reducing blood pressure.
text: Madagascar periwinkle helps enhance blood circulation in the brain, helps in brain metabolism, improves mental productivity, prevents memory loss, and boosts thinking ability by preventing the aging of brain cells.