Feeling uncontrolled things in the brain when sleeping, may be related to excessive mental tension, anxiety, depression or neurasthenia; may be related to excessive stress, fast-paced life, certain things encountered during the day can not be quickly resolved repeatedly thinking, resulting in the brain cells at night can not be well rested, continue to think about things or brain cells are more active. Excessive brain work leads to brain fatigue, which can also appear during sleep to continue dreaming and thinking about things. Watching comedy movies, playing exciting games or doing strenuous exercise before going to bed can also cause symptoms of excessive dreaming after sleep. Frequent consumption of excitatory drinks, strong tea, coffee or eating too much before bedtime, heart disease, etc. may lead to symptoms such as excessive thinking, dreaming, and thinking about things too much in dreams, and reasonable treatment should be chosen for the cause.