make the heart lacking of blood Coronary Heart Disease

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Definition / notes:While the heart pumps blood, the muscle gets it’s nutrition from the pumped blood coming back into the muscle via the "coronary arteries." The "left main" artery branches into two major arteries, the "circumflex" and "left anterior descending (or "LAD")" arteries (which have branches also). The "right coronary" artery usually supplies the heart’s natural pacemaker areas. Blockages, inflammation, infections, clotting disorders, and artery wall motion abnormalities are responsible for most coronary artery disease.

The coronary arteries can develop blockages from cholesterol problems, diabetes, clotting problems, abnormal anatomy or bulges (aneurysms), cigarette smoking, high blood pressure, anger, time pressure, and family history. These blockages build up and reduce the blood supply - causing "angina pectoris" with exertion. When the blocked area ruptures, it bleeds into the artery - causing a clot. It’s the clot that causes a heart attack. The most important treatment for heart attacks involves resolving the clot and preventing new ones. Rhythm disturbances (arrhythmias) are a common cause of death from both angina and heart attacks. Some authorities believe that up to 80% of angina episodes, and 20% of heart attacks are "silent" (without chest pain) - especially in diabetics.
URL:http://www.biologicalunhappiness.com/HeartDiz.htm
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