Hair loss caused by staying up late for a long period of time is resting hair loss, which will heal itself after avoiding staying up late. Prolonged staying up late may cause resting hair loss, usually more than 300 hairs per day after 3 months. Usually no treatment is needed, and it will heal naturally with less hair loss after avoiding staying up late. According to the growth cycle of hair follicles, hair loss can be stopped within 3 months after avoiding staying up late, hair growth will resume after half a year, and hair growth will be completely normal in about a year. Staying up all night for hair loss suggests regular work and rest, can be through yoga and other reasonable exercise, meditation and other ways to help sleep, if necessary, can be used topically Minoxidil and other drugs to promote hair growth. Hair loss should go to the hospital in time, under the guidance of the doctor reasonable treatment.