There are many causes of excessive dreaming, and the common causes are mainly the following. First, the physiological factors, such as a high degree of mental concentration before bedtime for work, study or the consumption of strong tea, coffee and other foods that easily excite the brain nerves before bedtime, can affect the quality of sleep, resulting in insomnia and dreaminess. This is often transient, and can be effectively improved after removing the triggers and getting sufficient rest. Secondly, mental factors, such as anxiety, depression and obsessive-compulsive disorder, can easily accompany sleep disorders, which require psychological guidance and psychological intervention by specialists. To effectively improve the symptoms, we need to treat the cause with medication. Third, disease factors, such as menopausal women due to hormone secretion disorders in the body resulting in plant nerve dysfunction, often will also appear insomnia and dreamy. In addition, hyperthyroidism, which is mostly seen in young and middle-aged people. Due to the excessive secretion of thyroid hormone in the body, the basal metabolic rate increases, which can also lead to insomnia and excessive dreaming.