Often stay up late will bring biological clock disorders, neurological and endocrine disorders, during the stay up late is the process of sympathetic excitement, and even stay up late, many people are required to smoke and other ways to mention the mental state, this time will cause a lot of organ function, the state of cell function to bring bad effects, and sympathetic overexcitation will lead to easy to serious arrhythmias, or some electrolyte If you have a cardiovascular disease, for example, a cardiovascular disease, or a cardiovascular disease, you will be more likely to have a malignant, arrhythmogenic state. If you have the basis of cardiovascular disease, such as atherosclerosis, it is easy to have the rupture of atherosclerotic plaque, secondary thrombosis, heart attack, and even sudden death, especially after the state of continuous late night, so often stay up late will bring bad effects, and in serious cases will cause sudden death, so do not often stay up late or continuous late night state, if it is necessary to work, there are some night Work needs to be completed, the day should make up for the sleep.