There is a difference between insomnia and staying up late, insomnia is a sleep disorder and staying up late is a behavioral habit. 1. Insomnia: Insomnia refers to the symptoms of patients who have difficulty falling asleep and cannot fall asleep, or the symptoms of shortened sleep time, waking up in the middle of the night and waking up too early in the morning. Insomnia is one of the sleep disorders that require psychological intervention and medication such as diazepam and zolpidem if necessary. 2. Stay up late: staying up late is due to work or other reasons to take the initiative to delay going to sleep, staying up late is a bad sleeping habit is also a bad habit of life. Long-term sleepless nights may also lead to insomnia, so we must pay attention to avoid staying up as late as possible in normal times, and maintain a good routine to ensure the quality of sleep. If you have frequent insomnia, it is recommended that you go to a regular hospital as soon as possible to avoid delay in treatment. The use of drugs need to be under the guidance of a physician, not blindly taken to avoid adverse reactions.