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Cholesterol in the diet causes coronary heart disease

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Introduction

'Cholesterol in the diet causes coronary heart disease' Coronary heart disease (CHD) is damage to or malfunction of the heart, caused by narrowing or blockage of the coronary arteries, which supply blood to the heart muscle. The two most common features of Coronary heart disease are angina pectoris (which is a chest pain that is caused by lack of blood to the heart muscle) and Myocardial Infarction (which is a common heart attack). * * A Myocardial Infarction is caused by plaque blocking the artery; plaque is a greasy layer of proteins, fats (including cholesterol) and immune system cells that accumulate on the inner walls of the Coronary arteries. In the UK we have one of the highest rates of Coronary Heart disease in the world. Between the ages of 45 and 64 CHD accounts for one third of all deaths. In most developed countries deaths from CHD have dropped in the past 20 years, possibly because we are wiser to the risks, but predominantly because of better medical treatment around hypertension (high blood pressure). ...read more.

Middle

The pain is a dull ache in the chest or a pressured feeling which may spread up the neck or down the arms. The pain usually comes after a certain amount of exertion (e.g. after walking up the stairs) and then disappears after resting for a while. Angina can also occur when the heart muscle is working hard and getting too little blood for the amount of effort being expended. If the blood supply to part of the muscle is cut off completely by a blood clot in one of the coronary arteries then you would experience an acute myocardial infarction. The main symptom is intense chest pain of the same type as in angina pectoris, but cannot be relieved by rest and is not brought on by immediate exertion. The person may also become very cold, sweat profusely, feel weak and nauseated and may even loose consciousness. ...read more.

Conclusion

Some people who have had relatives that have died of myocardial infarctions or have suffered strokes before the age of 50 are advised to have their own blood checked. After having looked in depth to both CHD and Cholesterol it is clear to see that there is a link between Cholesterol leading to CHD. However it is not all Cholesterol that is bad for you. The HDL's (high density lipoproteins) in the blood are good and protect against getting CHD by picking up the cholesterol from dying body cells and transporting it to the liver where it can be excreted in some form. It is the LDL's (low density lipoproteins) and VLDL's (very low density lipoproteins) that are proven to be greater causes of CHD as they carry the lipids and the cholesterol from the liver to other tissues. In putting the cholesterol back into the tissues it is not able to be disposed of like in the liver meaning that it blocks up slowly, leading to atherosclerosis, in turn steadily building up towards coronary heart disease. ...read more.

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