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What is coronary heart disease Cardiovascular disease is pertaining to the heart and blood vessels and is a disorder of the coronary arteries that supply blood to the heart muscle If these are damaged or blocked the oxygen to the heart muscle is reduced the heart stops contracting and the person has a heart attack This can cause instant death if a large part of the heart is affected or if it is less serious the person may recover Most Cardiovascular heart disease usually starts with a build up of a fatty substance called cholesterol on the inside of the coronary vessels This reduces the diameter of the vessels and therefore the flow of blood to the heart muscle What is angina Angina is the name given to a tight pain felt in the chest that occurs when insufficient oxygen is being carried in the blood to the muscles of the heart Stable angina usually occurs when the demand for oxygen cannot be met during exertion Unstable angina can occur at any time including at rest Angina is a fairly common condition in men over the age of 50 years although it can start as young as age 30 In women it generally starts after the menopause Angina is the result of coronary artery disease which is the main cause of death in the western world Hard deposits known by doctors as athermanous plaques line the inside of the arteries in the heart the coronary arteries narrowing them This reduces the amount of blood that can flow through them and thus the amount of oxygen delivered to the heart tissue
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