(NewsNation) — A stroke ... backgrounds, risks vary by race and ethnicity. The risk of having a first-time stroke is nearly twice as high for non-Hispanic Black adults as the risk for white ...

"This is the first time we've looked at how the brain's blood vessels react to a stroke at the molecular level in such detail. Our results show that the blood vessels become more permeable ...

The results run counter to what researchers had expected: that highly educated people would have slower brain decline following a stroke ... researchers said in background notes.