Staying up late can cause chest tightness, the causes are mainly abnormal nerve regulation, induced arrhythmia, aggravation of disease, as follows: 1, abnormal nerve regulation: staying up late can cause abnormal regulation between the sympathetic and parasympathetic nerves, which leads to the symptoms of chest tightness. 2, induced arrhythmia: staying up late can induce the occurrence of arrhythmia, such as premature heart beats. 3, aggravation of disease: the patient, if they are suffering from hypertension, coronary heart disease, heart failure, can lead to the aggravation of these diseases, which causes chest tightness, Coronary heart disease, heart failure, staying up late can cause these diseases to aggravate, thus causing the occurrence of chest tightness. For people who have chest tightness caused by staying up late, if the chest tightness persists or recurs, we should go to the hospital in time to clarify the cause of chest tightness, and actively give treatment to related diseases. In normal times to avoid staying up late, especially do not repeatedly stay up late, so as not to cause harm to the health.