Heart acts like a pump, it keeps beating everyday and brings oxygen and nutrients to different parts of the body through the blood. At the same time, carbon dioxide and other body wasted are carried away. BLOOD FLOW THROUGH THE HEART Coronary Heart Disease is the most common heart disease Myocardial Infarction means the narrowing or blocking of the blood vessels that supply blood to the heart (Coronary Artery) The death rate of heart disease increased by 2 times within the past 20 years 60% of which died before reaching the hospital 5-10% of which died in the hospital 30% people will have recurrent heart attack Smoking High blood pressure (hypertension) High cholesterol level Obesity Diabetes Lack of exercise Stress / Pressure