Less sleepy, can not sleep is insomnia, long-term insomnia can lead to neurasthenia, vegetative nerve disorders, fatigue, decreased resistance, etc., caused by insomnia, common causes are: 1, mental, psychological factors, usually work, life stress, love of nonsense, or meet too sad or happy things, easy to cause vegetative nerve disorders leading to insomnia. 2, lifestyle factors, usually often stay up late, Playing games, sleeping irregularly, resulting in biological clock disorders caused by insomnia. 3, environmental factors, the surrounding environment is noisy or indoor light is too strong, the surrounding air has a peculiar smell, etc., will lead to a decline in the quality of sleep caused by insomnia. 4, somatic disease factors, such as hyperthyroidism, heart failure, etc., resulting in physical discomfort and insomnia, usually pay attention to develop a good life and work habits, do not stay up late, usually More with the family, friends to communicate, and actively treat the primary disease.