Disease of heart head blood-vessel is generally referred to as the cardiovascular and cerebrovascular diseases, general with hyperlipidemia Blood viscous atherosclerosis such as high blood pressure caused by the heart and brain ischemic or hemorrhagic disease of body tissue Cardiovascular disease is a serious threat to human beings, especially over 50 of common diseases in the elderly health, with a high prevalence With the characteristics of high disability rate and high mortality rate, even with the application of the most advanced and perfect treatment methods, more than 50% of the survivors of cerebrovascular accidents can not completely take care of themselves. Every year, the number of people dying from cardiovascular and cerebrovascular diseases in the world is as high as 15 million, ranking the first among all causes of death.

       The prevention of cardiovascular and cerebrovascular diseases includes primary prevention and secondary prevention. Primary prevention refers to the prevention before the onset, that is, the prevention of disease without the occurrence of disease. Secondary prevention is to reduce the risk of recurrence and reduce the rate of disability, that is, to prevent recurrence of the disease.