Is uncontrollable bleeding in the brain after a cerebral vascular accident (CVA), resulting in a sudden loss of consciousness and paralysis of various parts of the body. Also known as stroke, stroke occurs when an artery or blood vessel in the brain becomes blocked or damaged, severely reducing the blood supply that carries oxygen and nutrients to the brain. Without oxygen and nutrients, brain cells begin to die within minutes. A delicate balance in the amount of blood supply to the brain is essential to prevent a stroke.
