The coronary arteries supply blood to the heart muscle to provide oxygen for respiration., Arteries can become blocked by a build-up of fatty plaques containing cholesterol., If a coronary artery is blocked, the blood supply to part of the heart muscle is cut off. , That part of the heart cannot get enough oxygen to respire, causing a heart attack., Possible causes of CHD include stress and smoking, which increases your blood pressure., Poor diets high in cholesterol and a lack of exercise can also lead to a build up of plaque in arteries., Cholesterol is a type of lipid (fatty substance) that can contribute to CHD., Plaques are fatty patches inside arteries that restrict blood flow. This causes high blood pressure.,

The Definition and Causes of CHD

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