Under normal circumstances, running will not cause sudden death, but if it is accompanied by cardiac diseases or some non-cardiac diseases, such as asthma, stroke, etc., it may cause sudden death after running. 1. Normal situation: under normal circumstances, if the body can adapt to the exercise level of running, sudden death will not occur under normal circumstances. 2. Accompanied by cardiac diseases or some non-cardiac diseases: if accompanied by myocardial ischemia, hypertrophic cardiomyopathy, acute pancreatitis, asthma, stroke and other diseases, it is possible that running may induce the occurrence of the disease, which will make the symptoms of sudden death appear. If the patient has the history of the above related diseases, it is necessary to control the exercise intensity and exercise time in daily life, and avoid strenuous exercise as much as possible, otherwise the running process may lead to the sudden onset of the old disease, which affects the health.