Any problem with the coronary arteries that keeps the heart from getting enough oxygen and nutrient rich blood causes Coronary heart disease. The most common cause is atherosclerosis. Lack of sufficient blood is called ischemia and so coronary heart disease is also sometimes called as ischemic heart disease.
The cause of coronary heart disease is related to multiple risk factors like:
Heredity: Coronary heart disease runs in the family.
High cholesterol: Levels of cholesterol in the blood are above healthy levels. This usually involves high levels of low-density lipoprotein (LDL), the bad cholesterol, and low levels of high-density lipoprotein (HDL), the good cholesterol.
Tobacco abuse: This includes not only smoking any form of tobacco (cigarettes, cigars, pipes), but also chewing tobacco.
Obesity
High blood pressure (hypertension)
Diabetes
Lack of regular exercise
High-fat diet
Emotional stress
Type A personality (impatient, aggressive, competitive)
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