It's just that middle schools in quite a few areas now, in order to pursue the enrollment rate, ignore the state regulations and force "make up lessons" on weekends (winter and summer vacations, too). In fact, it deprives students of the right to rest, takes up students' free time in class, and makes students study overload.
"Several Opinions on Further Strengthening the Management and Standardizing the School-running Behavior of Primary and Secondary Schools" stipulates that "it is strictly forbidden for schools to take up holidays, weekends, winter and summer vacations and spare time to organize students of any grade to make up classes or make up classes with compensation".
Formulate a scientific and standardized system for students' work and rest at school. Arrange weekly courses and schedules in strict accordance with the prescribed curriculum plan. According to the law of students' study and life, arrange daily courses and activities according to the principle of combining static and dynamic and alternating far and near. Ensure that primary school students sleep 10 hours a day, junior high school students sleep for 9 hours and senior high school students sleep for 8 hours.
Sleep normally
Studies have shown that staying up late for a long time will gradually lead to neurological and mental symptoms such as insomnia, forgetfulness, irritability and anxiety. Overwork makes the nervous system function of the body disorder, causing the imbalance of the main organs and systems in the body, such as arrhythmia and endocrine disorders. It will seriously lead to the stress state of the whole body, and the probability of infection will increase accordingly.
After a series of studies on sleep and human immunity, American immunologists believe that sleep can not only eliminate fatigue, but also has a close relationship with improving immunity and resisting diseases.
The number of T lymphocytes and B lymphocytes in the blood of people who get enough sleep is obviously increased, and these two kinds of cells are the main force of human immunity. Therefore, even in the relatively stressful work, we should keep enough sleep. Studies have shown that college students generally sleep no less than 7 hours a day.