FIRST FACT: A stroke kills brain cells Cell death is due to inadequate oxygen-rich blood supply to brain. Supply is interfered by disruption of blood flow to the brain by a clot or a rupture.  SECOND FACT: A stroke increases risk of subsequent stroke Approximately one out of every four stroke survivors is at risk of having another. THIRD FACT: Stroke Types Ischemic stroke is due to clot, blood vessel rupture causes hemorrhagic stroke, and a momentary blockage causes Continue reading