A stroke is when blood flow to the brain is suddenly cut off or reduced, inhibiting oxygen from getting to cells. It only takes minutes for the brain cells to begin dying.
Every second is essential in minimizing the damage caused by stroke. The resulting damage varies with the severity of the stroke, timeliness of treatment, and location within the brain. A small stroke may leave a person with temporary weakness in a limb while someone else with a large stroke could have permanent paralysis or language disability. While it is possible to make a full recovery from a stroke, more than two-thirds of survivors will have to live with some type of disability.