A '''stroke''' is [[paralysis]] of the body due to a problem with [[blood]] supply to the [[brain]]. As the [[blood]] supply to the brain depends on a single arterial system, a blockage can result in paralysis of even one whole side of the body. It often occurs during conditions of high [[blood pressure]], [[smoking]], and [[stress]], but can occur for unrelated reasons as well. As with many body ailments, strokes are more common in the elderly. | A '''stroke''' is [[paralysis]] of the body due to a problem with [[blood]] supply to the [[brain]]. As the [[blood]] supply to the brain depends on a single arterial system, a blockage can result in paralysis of even one whole side of the body. It often occurs during conditions of high [[blood pressure]], [[smoking]], and [[stress]], but can occur for unrelated reasons as well. As with many body ailments, strokes are more common in the elderly. |