Cardiovascular and cerebrovascular diseases are a general term for cardiovascular and cerebrovascular diseases, which generally refer to ischemic or hemorrhagic diseases of the heart, brain and whole body caused by hyperlipidemia, blood viscosity, atherosclerosis, hypertension, etc. disease. Cardiovascular and cerebrovascular disease is a common disease that seriously threatens the health of human beings, especially the middle-aged and elderly people over 50 years old. It has the characteristics of high morbidity, high disability rate and high mortality rate. There are still more than 50% of cerebrovascular accident survivors who cannot take care of themselves completely. The number of people who die of cardiovascular and cerebrovascular diseases in the world every year is as high as 15 million, ranking first among all causes of death.