Crystal's Articles in Health - Article Wisdom, the Article Database

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Stress Management There are special cells in the heart that act as a natural pacemaker, sending electrical signals through their fibers to the heart muscle and regulating the heartbeat. An electrocardiogram reproduces these electrical patterns as a tracing. When there is a disturbance in any part of this conduction system, the heart may beat irregularly, or the rate may become either very slow or very fast. Irregular heartbeats can be life threatening in some cases, because the heart is unable to pump blood efficiently. Coronary Heart Disese One of the common heart disease is nonetheless, coronary heart disease. Coronary heart disease results from a restricted suupply of blood to the heart muscle. When arteries become clogged, or narrowed, by deposits of hardened fat, cholesterol, and other substances called plague, blood does not flow through them easily. The most common type of heart attack is caused by a clockage of one of the coronary ateries by a blood clot that cuts off the blood supply to the region of the heart served by that artery. This damages or kills the deprived tiisue, and the injury is called a myocardial infarction. Angina is not a disease in its own right but is the name for pain that occurs when the muscular wall of the heart becomes temporarily short of oxygen.

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