This paper examines coronary heart disease (CHD) as a leading cause of death in the United States, exploring its primary forms — angina pectoris and myocardial infarction — along with their physiological mechanisms. It identifies key risk factors including age, sex, heredity, smoking, physical inactivity, and poor diet, and draws on American Heart Association statistics to illustrate the scale of the problem. The paper argues that lifestyle modifications, specifically regular exercise and a balanced, low-fat diet, are among the most effective strategies for managing and preventing CHD, helping to lower blood pressure, reduce cholesterol, and improve overall circulatory health.
Coronary heart disease is the nation's single leading cause of death. According to the American Heart Association's 2003 report on Heart Disease and Stroke Statistics, coronary heart disease is responsible for almost 1.1 million Americans who are at risk of a recurrent coronary attack. This figure illustrates the degree to which heart disease contributes to the increasing mortality rate and deteriorating health of many Americans. Coronary heart disease is a chronic illness in which the coronary arteries become narrowed and unable to carry a normal amount of blood (Microsoft Encarta 2002). Heart disease occurs precisely because of a clogging of the arteries that are vital for the regulation, supply, and flow of oxygen-containing blood in the circulatory system.
Two of the most common and prevalent forms of coronary heart disease are coronary artery disease — also known as angina pectoris — and heart attacks. In angina pectoris, the hardening and blocking of arteries occurs because of fatty deposits within the arterial walls (Weston 1993, 170). The organs primarily involved in this condition are the arteries and the heart. Coronary heart disease is characterized by the occurrence of angina pectoris, in which the heart is unable to receive a sufficient oxygen supply from the blood. Furthermore, because the arteries are clogged with fatty deposits, blood does not flow easily to the heart. Blood is essential to the circulatory system's functioning because it carries the oxygen needed for the heart's activities. When fatty deposits block most of the blood supplied to the heart, the circulatory system becomes deprived of the oxygen required to keep the heart functioning — especially during strenuous physical activity.
One important symptom of coronary heart disease is the occurrence of chest pain and, eventually, heart attack. Heart attacks almost always happen due to oxygen loss in the heart caused by the blocking of oxygen-carrying blood in the circulatory system. Heart attacks, also known as myocardial infarction, occur when a blood clot forms inside a coronary artery, severely limiting or completely cutting off blood flow to part of the heart (Microsoft Encarta 2002). Heart attacks are often characterized by breathlessness followed almost simultaneously by chest pain, primarily because of the lack of oxygen reaching the heart. Breathlessness also occurs because the failure of the circulatory system to pump blood effectively results in an accumulation of fluid in the lungs (Weston 1993, 171).
There are many causes that give rise to the development of coronary heart disease. Aside from the physiological state of the circulatory system, cardiovascular disease results from improper management of individual health and lifestyle. Coronary heart disease stems from three main risk factors that help explain its higher prevalence in older and male populations: age, gender, and heredity.
The risk of developing coronary heart disease increases as an individual grows older, primarily because the body's immunity and physical functioning deteriorate with age. Men are generally more susceptible to heart disease than women; however, research indicates that women become more vulnerable than men after menopause (AHA 2002). Finally, heredity is a risk factor that makes heart disease more likely in individuals with a family history of the condition. Those whose parents have suffered from heart disease are more likely to develop the same ailment ("Risk Factors," AHA 2002).
"Smoking, inactivity, diet, and AHA statistics"
"Lifestyle solutions for preventing heart disease"
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