Coronary Heart Disease

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Coronary Heat Disease
Health 11

Coronary Heart Disease, chronic illness in which the coronary arteries, the vessels that supply oxygen-carrying blood to the heart, become narrowed and unable to carry a normal amount of blood. Most often, the coronary arteries become narrowed because of atherosclerosis, a process in which fatty deposits called plaque build up on the inside wall of an artery (see Arteriosclerosis). Plaque is made of oily molecules known as cholesterol, fibrous proteins, calcium deposits, tiny blood cells known as platelets, and debris from dead cells. Plaque formation often begins in adolescence and progresses very slowly over the course of decades. Gradually, the growing plaque thickens the wall of the artery, reducing the space for blood to flow through.
According to the American Heart Association, in 2009 heart disease affected people as follows:
• A person’s death occurs every 34 seconds due to heart disease in the United States.
• In the US a person dies of heart attack every 20 seconds.
• About 2,500 American die due to heart attacks.
• Around 250,000 die due to heart attack before they reach a hospital in the US.
• Those below the average level of education suffer from heart attacks more.
• The following countries are known for higher death rates due to heart disease. Romania, Bulgaria, Poland, Czechoslovakia, Hungary and the Soviet Union.
• About 6 million hospitalizations take place each year in the US on account of cardiovascular disease.
• Every 33 seconds a death occurs due to cardiovascular disease in the US.
• Since 1900 onwards, the number 1 killer has been cardiovascular disease in the US except 1918.
• Men tend to suffer heart attacks 10 years earlier in life as compared to women.
• Over 1,000 individuals die of sudden arrhythmic death syndrome (SADS) in the US. Most of them are either of middle age…...

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