Cardiovascular Health Key Concepts What are some diseases of the cardiovascular system? What...
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Cardiovascular HealthKey Concepts
What are some diseases of the cardiovascular system?
What behaviors can maintain cardiovascular health?
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Key Terms Atherosclerosis Heart attack hypertension
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Cardiovascular Diseases Leading cause
of death in the U.S.
Atherosclerosis and hypertension are 2 diseases of the cardiovascular system
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Atherosclerosis A condition in which an artery wall thickens as a
result of the buildup of fatty material Cholesterol – a waxy substance Results in reduced blood flow Can develop in coronary arteries, which supply
heart muscle – may lead to a heart attack Heart attacks occur when blood flow to part of the
heart muscle is blocked. Cells die and the heart is permanently damaged
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Treatment for Atherosclerosis Mild – low fat diet and moderate exercise
program. Medications that lower cholesterol levels may be prescribed
Severe – may need to undergo surgery or other procedures to unclog blocked arteries
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Hypertension Also called high blood pressure A disorder in which a person’s blood
pressure is consistently higher than normal (140/90)
Makes the heart work harder May damage the walls of the blood vessels No obvious symptoms – called the silent
killer
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Treatment of Hypertension Hypertension and atherosclerosis closely
related – As arteries narrow, blood pressure increases
Mild – regular exercise and careful food choices - May need to limit sodium
More severe – medications are needed to lower blood pressure
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Keeping Healthy Exercise regularly, Eat a balanced diet that is low in: saturated fats (butter, whole milk and ice cream) trans fats (margarine, potato chips and doughnuts cholesterol (red meats, eggs and cheese) Sodium (table salt, processed foods – soups and
snacks) Avoid smoking – smokers are twice as likely to
have a heart attack as nonsmokers
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Sources http://www.ohiohealth.com/bodymayo http://www.biotech-weblog.com http://www.nmh.org/nmh/adam/adamencycl
opedia/Imagepages/18018.htm http://www.medem.com/medlib/article/ZZZI
58IAQ8D