About 87% of all strokes are . In this scenario, a blood vessel becomes obstructed, preventing blood from reaching brain cells, which then begin to die within minutes. This blockage usually occurs in one of two ways:
A clot forms elsewhere in the body—often in the heart due to an irregular rhythm like Atrial Fibrillation (AFib) —and travels through the bloodstream. It eventually reaches a vessel in the brain that is too narrow for it to pass through, causing an immediate blockage. The Break: Hemorrhagic Stroke what causes a stroke
Over many years, fatty deposits called plaque (made of cholesterol and calcium) build up on the inner walls of the arteries. This narrows the "pipes" until a blood clot forms at the site, completely sealing off the vessel. About 87% of all strokes are