Stroke is a disease that affects the arteries leading to and within the brain. A stroke occurs when a blood vessel that carries oxygen and nutrients to the brain is either blocked by a clot or bursts (or ruptures). When that happens, part of the brain cannot get the blood (and oxygen) it needs, so it and brain cells die. Check out some interesting Key Facts about stroke. So grab this app and also know complications, foods to prevent a stroke, natural remedies for stroke, public stroke prevention, stroke symptoms & Signs, risk factors about stroke.