How is heart attack caused

We are all exposed to the shock caused by the sudden demise of a person whom we found as seemingly healthy a couple of days, or sometimes, hours back. Heart attack is a probable cause of this kind of death. Heart attack is medically termed as Myocardial Infarction. It is caused by the sudden stoppage of the heart.

The sudden failure of heart in pumping the blood might be either due to death or damage to the heart muscles known as myocardium. Cardiovascular diseases often pave way to heart attack.
Out of all the numerous cardiovascular conditions, the one that often leads to a heart attack is Coronary Heart Disease.

More appropriately it gets described as Coronary Artery Disease (CAD). Coronary Artery Disease is a condition that impairs the proper functioning of the coronary arteries that carry the oxygen-rich blood to the heart muscles.

This disorder is the final consequence of the gradual accumulation of fatty deposits, known as plaques, within the arterial walls. The accumulation of plaque naturally narrow down the passage of blood and finally the flow of the blood stream get partially obstructed. This condition is medically termed as arteriosclerosis.

If not detected, the build up of plaque continues and over the years, the hindrance to the flow of blood becomes intensified. Though the complete blockage to blood flow by the gradual buildup of plaque is a long process, sudden rupture of plaque brings in a sudden twist to the condition.

As the plaque gets ruptured, the clotting system is triggered. The interaction that occurs between the plaque and clot results in the sudden closure of the arteries. Such an immediate cease to the arterial blood flow severely damages the heart muscles and leads to heart attack.

Beside some uncontrollable factors such as hereditary and gender, smoking and alcohol consumption, intake of fat-rich food high in calories, high cholesterol level especially that of low density lipoproteins, lack of exercise etc makes a person more prone to the risk of heart attack.



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