Adolescent insomnia is generally caused by primary causes. Teenagers are in the learning stage, and the study pressure is too great, so they may have mental fatigue, or overthink, and have fear and anxiety, which will affect their sleep at night. For this kind of people, we should calm down and understand that sleep is the natural physiological process of the body, and occasional insomnia will not have much impact on the body. Work and rest regularly, don't do strenuous exercise two hours before going to bed, and form a good habit of working and rest on time. Try to drink less irritating substances such as strong tea, strong coffee and cola, and try to eat less spicy irritants. The thrilling film and television works are also exposed as little as possible, and the sleeping environment remains stable and comfortable. After paying attention to the above matters, most insomnia phenomena can be alleviated.