What causes a stroke/brain attack?
Most strokes are caused by the blockage of an artery in the neck or brain, and the rest by bleeding into or around the brain. When brain cells die, function of the body parts they control becomes damaged or destroyed. This may include paralysis, speech problems, memory and reasoning deficits, coma, and possibly death. What happens during a stroke? According to the American Heart Association: A brain attack occurs when a blood vessel bringing oxygen and nutrients to the brain bursts or is clogged by a blood clot or some other particle. When the brain doesn’t get the needed blood flow, because of a rupture or blockage, it is deprived of oxygen. Thus, nerve cells cannot properly function and die within minutes. And when nerve cells cannot function, the part of the body controlled by these cells cannot function either. The devastating effects of stroke are often permanent because dead brain cells are not replaced. What are the types of strokes? There are four main types of stroke: • Cerebr