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Cerebrovascular disease: Disease of the blood vessels and, especially, the arteries that supply the brain. Cerebrovascular disease is usually caused by atherosclerosis and can lead to a stroke. See also atherosclerosis, stroke. Last Editorial Review: 5/13/2016.
Even without a major event such as a stroke, cerebrovascular disease can impair the brain's normal function by reducing its blood flow. Damaged brain cells do not regenerate on their own, and so it is critical to contain and repair damage once it occurs, and equally critical to prevent it before it happens.