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Diet and Coronary Heart Disease What is the cardiovascular system? ? Made up of the heart and blood vessels. ? It circulates oxygenated blood around the body using one set of vessels and deoxygenated blood around the body through another set of vessels. What is cardiovascular disease? ? This is a term used to 'blanket' many diseases which occur within the cardiovascular system. Hypertension ? Hypertension is also known as high blood pressure, it is commonly associated with narrowing of the arteries. ? This causes blood to be pumped with excessive force against the artery walls. ? It is a sign that the heart and blood vessels are being overworked. ? Untreated, hypertension will cause the heart to eventually overwork itself to the point where serious damage can occur. ? Hypertension can be both the cause and effect of atherosclerosis. ? Atherosclerosis can be thought to increase the risk of hypertension by increasing the resistance to blood flow. ? This...

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