The first day of the night shift for doctors and nurses and all medical workers is designated as Doctor Sleep Day, a day when hospitals do not arrange for medical workers to work overtime, train, study or participate in other departmental activities. The hospital will not arrange overtime work, training, study or other activities of the department on this day to ensure sufficient rest. As we all know, staying up late is the number one killer of human health! Some studies show that overtime work is a high risk factor for heart disease, and the risk of heart disease is increased by more than 67% for people who work more than 11 hours a day compared to those who work 8 hours a day. People who often stay up late are in a state of long-term subhealth and are vulnerable to disease, and even the risk of sudden death! This is by no means sensational, there have been a number of “sudden death after a long night” accidents, most of the victims are young people. Often stay up late will not only lead to irregular life, disorder in the diet structure, exercise time, resulting in endocrine disorders, resistance to decline, but also should be in a resting state at night sympathetic nerves continue to excite, inducing a variety of heart disease, serious even cause myocardial infarction, malignant arrhythmia, resulting in sudden cardiac death. Today’s society in all walks of life are increasingly stressful, staying up late at night seems to have become commonplace, so what can be done to protect our own health without affecting the premise of work? 1, improve daytime work efficiency, try to avoid unnecessary late night. 2, after staying up late must make up for the sleep. Some research shows that people who work continuously for 24-48h can recover 70% of their basic working ability with 4-6 h of sleep, and 8-10 h of sleep can basically restore their normal working ability; however, workers who work continuously for more than 72 h need at least 12-20 h of sufficient sleep to basically restore their normal working ability. 3, after staying up all night to ensure the quality of sleep. We should choose a dark, quiet and temperature-appropriate environment to rest, try to turn off the phone before bed, do not drink and smoke, such as hunger can eat a small amount of carbohydrates, but do not eat fluids and drink a lot of water. 4.Healthy diet, strengthen exercise. Daily meals should be nutritionally balanced, reduce high-fat, high-calorie foods, to ensure the intake of vegetables and fruits, grains and cereals and high-quality protein. In addition, proper regular exercise can not only enhance physical fitness, but also relieve the pressure of work. Normal adults can choose more than 30 minutes of moderate intensity aerobic exercise, such as swimming, jogging, brisk walking, cycling, etc.. I hope to give a wake up call to office workers who often stay up late, to help you learn to protect their health in the busy work!