"Coronary Heart Disease is self inflicted"

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Linda Tait        Page         01/05/2007

“Coronary Heart Disease is self inflicted” Do you agree or disagree?

Coronary heart disease occurs when the coronary arteries become partially blocked from, cholesterol and fat, circulating in the blood. This causes a build up inside the walls of the arteries. This only occurs if the levels of fat and cholesterol are extremely high in the blood that there is a greater chance that it will be deposited onto the artery walls. If the arteries become completely blocked, the patient will have a myocardial infarction, commonly known as a heart attack. A heart attack can cause permanent damage to the heart muscle, and can sometimes be fatal if immediate treatment is not given. There are other contributing factors other than fatty deposits which can cause coronary heart disease such as high blood pressure. The focus of this quote is that this disease is caused by the person who has contracted it. However, this statement is not totally correct because there is evidence to suggest that heart disease can occur from uncontrollable circumstances; such as gender, heredity and age. In this essay I shall evaluate both controllable and uncontrollable circumstances for someone to suffer from coronary heart disease.

Obesity is one risk in which it is often brought about by the person themselves. This is because it is in the control of the person. Therefore their decisions can be made without consultation. However, by being over weight it increases the total cholesterol levels in the blood (2). Liver makes cholesterol from the saturated fats in the blood; it enters the blood and is transported around by proteins known as “lipoproteins”. There are two types of lipoproteins low density and high density. Atherosclerosis, scientific term for the blocking of the lumen in the arteries, develops when low density lipoprotein cholesterol undergoes an oxidation reaction and epithelial cells attract the substance towards them where it narrows the arteries (3). To prove the idea that coronary heart disease can be self inflicted by obesity is if you follow a healthy diet. It improves the ratio of high density lipoproteins to low density lipoproteins cholesterol (3). From doing this cholesterol levels can reduce by 5 to 10%; on average by reducing 1% of cholesterol in the blood will reduce double the risk of heart disease(4), due to more oxygen being able to be transported to muscles in the heart so it is never starved. Not only does obesity increase fat levels in the blood it increases hydrostatic pressure within the arteries (5). When your blood pressure is too high, the arteries become scarred, hardened and less elastic; this is known as atherosclerosis (6). From this we can judge that obesity is one risk factor caused by upbringing which makes heart disease a more likely illness for someone.

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In addition, smoking is another activity which is self inflicted that increases the likelihood of getting coronary heart disease. The exposure to the fumes produced from the smoke cause free radicals (homolytic fission: bond breaks evenly leaving two reactive radicals) (1). These radicals promote the growth of plaque inside arteries causing atherosclerosis. Consequently, this problem starves the heart of oxygen if the blood vessels become extremely restricted (2). Furthermore, carbon monoxide gases exhibited from cigarette smoke intoxicates the heart’s consumption of oxygen because the gas reacts with the haemoglobin rather than the oxygen that is needed for respiration (7). ...

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