Symptoms depend on the part of the brain that is affected.
People who survive a stroke often have weakness on one side of the body or trouble with moving, talking, or thinking. These are caused by reduced blood flow to the brain when blood vessels are blocked by a clot or become too narrow for blood to get through. Brain cells in the area die from lack of oxygen. Strokes are more common in older people. Almost three-fourths of all strokes occur in people 65 years of age or over.