Coronary heart disease is caused by a variety of reasons leading to arteriosclerosis of cardiac vessels or narrowing, resulting in insufficient cardiac blood supply. Common risk factors for coronary heart disease include older age, smoking, high blood lipid levels, high blood pressure, high blood sugar, among others. Generally, aging is unavoidable, but we can prevent the progression of coronary heart disease by quitting smoking, controlling blood sugar, blood pressure, and blood lipid levels. It is also important to control weight, reduce the intake of fatty foods, improve lifestyle, exercise regularly, keep a regular schedule, and avoid excessive fatigue. These are the methods for the early prevention of coronary heart disease, and medication may be necessary when needed.