There are many possible causes of smoking panic, first of all, smoking can easily cause hypoxia, which leads to tachycardia. In addition, smoking may induce coronary artery spasm, causing ischemia and hypoxia in cardiac muscle cells, which may lead to tachycardia. In addition, smoking can stimulate the sympathetic nervous system, which can cause an increased heart rate. Therefore, smoking is harmful but not beneficial. For patients with cardiovascular disease, it is recommended to have a low salt and low fat diet, quit smoking and limit alcohol, exercise in moderation, and maintain an optimistic, positive and upbeat attitude towards life. For patients with coronary heart disease, smoking is one of the risk factors for the onset of the disease. Smoking can lead to the occurrence and aggravation of acute myocardial ischemic events, causing angina pectoris and even myocardial infarction, etc., which seriously affects the prognosis of patients.