The season that patients with cardiovascular and cerebrovascular diseases should pay special attention to is winter. The cold weather is a test of cardiovascular and cerebrovascular diseases, and it is prone to serious situations such as myocardial infarction and cerebral infarction. After entering winter, patients with cardiovascular and cerebrovascular diseases should pay attention to the following points: First, keep warm, go to crowded places as little as possible to prevent colds. Second, entering a cold environment from a warm environment is easy to induce vasoconstriction, so there is no special situation to minimize going out, and you should also choose to exercise at noon to avoid exercising in the morning and evening when the temperature is low. Third, after entering the winter, we should monitor the basic conditions such as blood pressure and heart rate more frequently, make regular follow-up visits to outpatient clinics, and do a good job in drug treatment.