Coronary Heart DiseaseCoronary heart disease occurs when the coronary arteries become partially blocked by cholesterol and fats circulating in the blood. This causes buildup inside the artery walls. This only happens if the levels of fat and cholesterol in the blood are extremely high, so there is a greater chance of them being deposited on the artery walls. If the arteries are completely blocked, the patient will have a myocardial infarction, commonly called 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 that can cause coronary heart disease such as high blood pressure. The main point of this quote is that this disease is caused by the person who contracted it. However, this statement is not completely accurate as there is evidence to suggest that heart disease can arise from uncontrollable circumstances; such as sex, heredity and age. In this essay, I will evaluate both controllable and uncontrollable circumstances in which a person suffers from coronary heart disease. Obesity is a risk in which it is often caused by the person himself. This is because it is within the person's control. Therefore, its decisions can be made without consultation. However, being overweight increases total cholesterol levels in the blood (2). The liver makes cholesterol from saturated fats in the blood; it enters the blood and is carried by proteins called “lipoproteins”. There are two types of lipoproteins low density and high density...... middle of paper ... and environmental hazards can both contribute to heart disease and the same symptoms. Bibliography1. The website http://www.westonaprice.org/moderndiseases/hd.html2. The website http://healthlink.mcw.edu/article/931375421.html3. The British Heart Foundation's 'Eating for your Heart' leaflet, published in September 20014. The Britannica 2004 encyclopedia. The British Heart Foundation 'Blood Pressure' leaflet, published September 20017. Website http://www.lifeclinic.com/focus/blood/articleView.asp?MessageID=5798. The website http://www.bbc.co.uk/schools/16/sosteacher/biology/32764.shtml9. The website http://www.reutershealth.com/wellconnected/doc14.html