1. If blood circulation in the body decreases
2. If the heart muscle is damaged
3. If heart attack, high blood pressure, amyloidosis
4. Alcohol and drug abuse
5. Smoking and drinking
6. Over secretion of thyroid hormone
7. Complications of the heart valve
8. If there is cardiac arrhythmia
9. Hereditary heart disease and arrhythmias
10. Excessive anemia
11. Cardiomyopathy and ischemic disease
12. Excessive stress, aging, genetic reasons