Coronary heart disease has a tendency to run in families, and if a parent has had coronary heart disease, the next generation is more likely to develop coronary heart disease. Now there are research shows. Previous generation of coronary heart disease, the next generation of coronary heart disease to advance about ten years, the father in sixty years old coronary heart disease, the child may be 50 years old will have coronary heart disease. Coronary heart disease has a genetic predisposition in families, but it is not a hereditary disease. If there is a family history, attention should be paid to lifestyle improvements at a young age. For example, smoking cessation, exercise, avoiding obesity, annual physical examination, timely detection of high blood pressure, high blood cholesterol and diabetes. Through lifestyle, diet or medication to lower blood pressure, blood lipids and blood sugar to normal, so as to reduce the possibility of coronary heart disease. We can’t change our genetic predisposition, but we can control the possibility of coronary heart disease caused by environmental factors.