Staying up all night may lead to inaccurate blood glucose measurements the next day, which may cause high blood glucose. Staying up late is a kind of stressful state for the human body, which can lead to sympathetic nerve excitement, resulting in adrenaline and other hormone levels rise, these hormones have the effect of elevating blood glucose, which can lead to the next day’s blood glucose measurement is high. Staying up late may affect the accuracy of blood glucose, so in addition to controlling the fasting time before blood glucose measurement, you should also pay attention to reasonable rest, avoid staying up late, avoid emotional excitement, and maintain emotional stability. Before the blood glucose test should be strictly in accordance with the requirements of the doctor to prepare, found abnormal blood glucose levels of patients should follow the doctor’s instructions standardized diagnosis and treatment, so as to avoid delays in the condition.