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Gemma Brayne December 2002 Homework "Factors affecting the development of coronary heart disease" Coronary heart disease has two principal forms; these are angina and heart attacks. They both occur because the arteries carrying blood to the heart muscle become blocked or narrowed, usually by a deposit of fatty substances, a process known as atherosclerosis. (source 4) Angina is a severe pain in the chest brought on by exertion and relieved by rest. A heart attack is due to obstruction of a coronary artery either as a result of atherosclerosis or a blood clot, this is where part of the heart muscle is deprived of oxygen and dies. Cigarette smoking, raised blood cholesterol and high blood pressure are the high risk factors leading to Coronary heart disease. With cigarette smoking being the "most important of the known modifiable risk factors for Coronary heart disease", (according to the US Surgeon General). A cigarette smoker has two...

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