Occasionally a whole night sleep does not appear sudden death, but if a long time stay up or all night without sleep can lead to coronary artery spasm, and then cause coronary artery blood supply interruption or reduction, in serious cases the patient can appear sudden cardiac death. Some elderly patients due to atherosclerosis, vascular stenosis, patients can appear coronary heart disease, angina pectoris, if a long time stay up late without sleep, patients can appear coronary artery occlusion, and then myocardial infarction, and in serious cases can also appear sudden cardiac death. For patients with sleep disorders, that is, sleeplessness, you can consult the hospital to give some drugs, such as benzodiazepine sedative sleeping pills or some Chinese medicine to improve sleep. Patients are advised to take appropriate physical exercise and avoid staying up late to avoid sudden cardiac death caused by spasm of coronary arteries.