Under normal circumstances, people will dream during sleep, dreaming is the result of cortical excitement, the main causes of dreaming are the following: 1, night dreams are mostly related to things that happen during the day or worry about things, usually too much pressure at work, anxiety, overwork, mental tension, etc. can cause symptoms of dreaming. 2, if the sleep environment is improved or noisy sleep environment, affecting the quality of sleep will also cause symptoms of dreaming. 3, often stay up late can cause biological clock disruption, causing symptoms of insomnia. 3, often stay up late will cause biological clock disorders, causing insomnia and dreamy symptoms. 4, anxiety disorders, neurasthenia patients with poor sleep quality, will also cause insomnia and dreamy symptoms. If dreaming does not affect the daytime work or study, usually do not need to treat, regulate their emotions, do not stay up late, develop good sleep habits, to improve the symptoms of excessive dreaming is beneficial.