Cardiac Disease: The Cause Of Cardiovascular Disease

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system, principally cardiac disease, vascular diseases of the brain and kidney, and peripheral arterial disease. The causes of cardiovascular disease are diverse but atherosclerosis and/or hypertension are the most common. In addition, with aging come a number of physiological and morphological changes that alter cardiovascular function and lead to increased risk of cardiovascular disease, even in healthy asymptomatic individuals.
Heart attacks and strokes are usually acute events and are mainly caused by a blockage that prevents blood from flowing to the heart or brain. The most common reason for this is a build-up of fatty deposits on the inner walls of the blood vessels that supply the heart or brain. Strokes can also be caused by bleeding
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9.4 million deaths each year, or 16.5% of all deaths can be attributed to high blood pressure , This includes 51% of deaths due to strokes and 45% of deaths due to coronary heart disease.
“Types and Conditions of CVD.
The term cardio-vascular disease (CVD) encompasses a wide spectrum of disease, which include Ischaemic Heart Disease (IHD), heart diseses other than IHD, systemic arterial hypertension, stroke, and peripheral vascular disease (PVD). IHD is the prototype example of lifestyle disease; it is defined as a stake of lack of supply of oxygen to the myocardium vis-a-vis the demand due to narrowing of the coronary arteries as a result of the atherosclerotic process. Two major pathological conditions contribute to cardiovascular diseases. The most common form is arteriosclerosis and the second is hypertension. Coronary heart disease-Coronary heart disease Coronary heart disease is the major disease of cardiovascular system; of the million deaths noted previously, it is responsible for over half.
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Without it we would not be able to sustain body metabolism. In simple language, blood pressure is the force that the blood exerts against the blood vessel walls. Although pressure is present in all types of blood vessels, the arterial blood pressure is the one most commonly measured and most important to our health. Blood pressure is also known as hypertension is a silent killer. It is an uncontrolled epidemic. People with hypertension do not have it under control. One reason is that nearly a third does not even know they are hypertensive, mainly because it has no outstanding symptoms. Some general symptoms include headaches, dizziness, and fatigue, but since they can be caused by a multiple of other factors, they may not be recognised as symptoms of high blood pressure. Although a great deal of research about the cause of high blood pressure has been conducted, the exact cause is unknown in about 90% of all cases. In these cases, the condition is known as essential hypertension, which cannot be cured, although lifestyle changes or medications can lower the pressure by reducing the blood volume or decreasing the peripheral vascular resistance. High blood pressure is dangerous for several reasons. The heart must work much harder to pump the extra blood volume or to overcome the peripheral vascular resistance. The normally leads to an enlarged heart. Overtime the increase in heart size becomes excessive and the efficiency of the heart

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