The most common stroke happens when an artery that supplies blood and oxygen to the brain becomes blocked. A blood clot forms in a damaged artery in the neck or brain. Or a clot forms near the heart and travels to an artery in your neck or brain, where it gets stuck in a more narrow part of the artery. If your brain can't get the blood and oxygen it needs, then nerve cells begin to die. This is called an ischemic stroke. SYMPTOMS OF A STROKE: numbness or weakness in one side of your face, arm or leg. Trouble walking or balanceing. Trouble talking or feeling confused. Loss of vision in one or both eyes. Sudden, severe headache.
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