First, the harm of smoking on the cerebrovascular smoke on the human body of the many hazards also include cerebrovascular disease. According to long-term research: 30 to 40 years old smokers than non-smokers, the incidence of cerebrovascular disease is 5 times higher, 50 to 60 years old is 3 times higher. Also, deaths due to cerebrovascular disease are two to six times higher than those of nonsmokers, and are closely related to the amount of smoking. Cigarettes contain more than four hundred chemicals, many of which are closely related to cerebrovascular disease. These include carbon monoxide, nicotine, metal cadmium and other substances, which are the culprits in promoting increased blood viscosity, atherosclerosis, causing ischemic encephalopathy and increased blood pressure. In particular, nicotine in cigarettes can damage the lining of blood vessels and can cause small blood vessel constriction, narrowing of the lumen, and therefore easy to form thrombosis, so patients should quit smoking. The earlier you quit, the better, British research shows: smokers who can quit before the age of 35, the risk of dying from tobacco-related diseases is significantly reduced, almost similar to nonsmokers. Unfortunately, in practice, we see a very large majority of people who are forced to stop smoking only after a myocardial infarction, stroke or other major illnesses such as lung cancer or lung heart disease. We urge everyone to clearly understand that quitting smoking is one of the most important and essential measures for the prevention and treatment of cardiovascular disease, and is the largest preventable cause of cardiovascular disease. Second, how to effectively quit smoking Several necessary conditions for successful smoking cessation: 1, full understanding of the hazards of smoking and the immediate and long-term health benefits of quitting smoking. 2, with a high degree of self-awareness, determination, excluding all kinds of temptations and interference, not afraid of setbacks, perseverance, persistence, and establish the belief that quitting smoking will win. 3.Change the habit of smoking unconsciously when thinking or coping with various events such as stress. 4.Familiar with withdrawal symptoms and their response, and take the initiative to accept the support and guidance of friends, family and professional physicians. 5.If smoking has constituted a complex chronic disease, you should receive the necessary medication for smoking cessation.