2 Heart Disease

 

 

Coronary Heart Disease Causes

Coronary heart disease is caused by a narrowing of the coronary arteries that feed the heart.  Like any muscle, the heart needs a constant supply of oxygen and nutrients, which are carried to it by the blood in the coronary arteries.

When the coronary arteries become narrowed or clogged by cholesterol and fat deposits--a process called atherosclerosis--and cannot supply enough blood to the heart, the result is coronary heart disease (CHD).

Atherosclerosis usually occurs when a person has high levels of cholesterol, a fat-like substance, in the blood.  Cholesterol and fat, circulating in the blood, build up on the walls of the arteries. The buildup narrows the arteries and can slow or block the flow of blood.

When the level of cholesterol in the blood is high, there is a greater chance that it will be deposited onto the artery walls. This process begins in most people during childhood and the teenage years, and worsens as they get older.

In addition to high blood cholesterol, high blood pressure and smoking also contribute to coronary heart disease.  On the average, each of these doubles your chance of developing heart disease. Therefore, a person who has all three risk factors is eight times more likely to develop heart disease than someone who has none.

Obesity and physical inactivity are other factors that can lead to heart disease.  Being overweight increases the likelihood of developing high blood cholesterol and high blood pressure, and physical inactivity increases the risk of heart attack. Regular exercise, good nutrition, and smoking cessation are key to controlling the risk factors for coronary heart disease.

Coronary Heart Disease - Causes, Symptoms, Prevention, Testing for CHD, Treatment Options, Surgery Options, Additional Resources

 

 

 

 

Copyright 2003.  All rights reserved.  2 Heart Disease

coronary heart disease