Stroke is a type of cerebrovascular disease that is often acute in onset and has a poor prognosis, and is a common disease of the middle-aged and elderly. The cause of stroke is inseparably related to diseases such as increased blood lipids and increased blood viscosity. Specifically, it can be caused by the following factors: 1, the most important cause of stroke is atherosclerosis, according to statistics, about 70% of stroke patients suffer from atherosclerosis, and hyperlipidemia is one of the main causes of atherosclerosis. 2, the most common cause of stroke is hypertension, according to statistics, about 93% of patients with cerebral hemorrhage have a history of hypertension. 3.The common cause of subarachnoid hemorrhage and cerebral hemorrhage is congenital abnormality of cerebral vessels. 4, heart disease, such as: endocarditis, may produce compound wall thrombosis; bradycardia may cause cerebral blood supply deficiency. 5, metabolic disease, diabetes and stroke are most closely related, 30-40% of stroke patients suffer from diabetes. Since the onset of stroke is mostly acute and sudden, but the pathological process is mostly slow, in this pathological process of change, the triggering factors of stroke also play an immeasurable role. Among them, poor mood, poor diet, overexertion, overexertion, excessive exercise, climate change, pregnancy, dry stool, improper use of the brain and other living conditions, as well as diabetes, hypertension, hyperlipidemia, hemophilia, heart disease, high blood viscosity, bradycardia, vascular sclerosis and other diseases and improper medication are common triggers of stroke.