It should be a little anxious! Anxiety leads to insomnia, gain and loss. Almost all people with insomnia have a cognitive mistake, that is, they think that sleep can be controlled by consciousness. Because you think you can control your sleep, you will make high demands on it. For example, you must sleep well at noon and be in good spirits in the afternoon; Have a good sleep before the exam and play well the next day; You must sleep well to have good skin, good mood and good physical strength; In order to stay healthy, you must sleep for eight hours every day. These people regard a good sleep as the premise of their life and work, but in fact, sleep can't be controlled by consciousness. The previous requirements were all based on uncontrollable, just castles in the air. The higher the building is built, the worse it will collapse.