Wu Hao, Director of Outpatient and Emergency Department of Neurosurgery, Xuanwu Hospital, Capital Medical University: ① To make up for sleep at noon or on weekends the next day, it is recommended to make up in different times and time periods. Crazy make-up will disrupt the biological clock; ② Take a bath , Soak your feet and do some head massage to help you sleep; ③ Drink milk to help calm the nerves; ④ Try to fall asleep at 10 o’clock to reduce the loss of staying up late.