In general, chest tightness, panic attacks and shortness of breath in the heat of the day may be caused by poor cardiopulmonary function, and it is recommended to check the electrocardiogram chest X-ray, ambulatory electrocardiogram and cardiac enzymology to detect the presence of organic diseases. In addition, it cannot be ruled out that the patient has cardiac dysfunction, which is a subjective feeling of difficulty in breathing, but there is no problem with the cardiopulmonary function and other organs. It is not possible to exclude the occurrence of pyrexia. It is recommended that the patient should be admitted to the hospital for examination and drink more water when it is hot to avoid dehydration and electrolyte disorders.