"Every spring, patients with cardiovascular and cerebrovascular diseases will feel flustered and chest tightness." Professor Lu Weixing, director of the Department of Cardiology, Dongzhimen Hospital, Beijing University of Chinese Medicine, analyzed that this is because the recovery of all things in spring is likely to cause emotional excitement. In addition, the burden on the heart is increased. At the same time, the spring weather is hot and cold, the temperature difference between day and night is large, and the blood vessels contract strongly, which also affects the heart. In addition, if the patient does not pay attention to keep warm, there is a fever, fever, and decreased immunity, which will also affect the normal work of the heart. "These factors may induce cardiovascular and cerebrovascular diseases."