If the blood supply is cut off drastically for a long time, heart muscle cells suffer irreversible injury and die. Disability or death can result, depending on how much heart muscle is damaged. Pain spreading to the shoulders, neck, or arms Chest discomfort with lightheadedness, fainting, sweating, nausea, or shortness of breath Not all of these symptoms occur in every attack. Sometimes they go away and return. If some occur, get help fast.
Stroke is a form of cardiovascular disease that affects the arteries of the central nervous system.
A stroke occurs when a blood vessel bringing oxygen and nutrients to the brain bursts or is clogged by a blood clot or other particle. Because of this repture or blockage, part of the brain doesn't get the flow of blood it needs. Deprived of oxygen, nerve cells in the affected areas of the brain cannot function and die within minutes. When nerve calls can't function, part of the body controlled by these cells can't function either. The devastating effects of stroke are permanent because dead cells aren't replaced.