Difficulty in falling asleep may be caused by the liver, or by other factors, such as heart fire, thought and labor. 1. Liver depression and stagnation of qi (poor qi and blood transportation in the liver, emotional depression), high fire in the liver and gallbladder may lead to difficulty in sleeping. In addition, liver-stomach disharmony (disharmony between the ascending function of the liver and the descending function of the stomach and internal organs), deficiency of the kidney and yin deficiency, and anxiety and fatigue may also lead to difficulty in sleeping. Changes in the environment, mosquito bites, environmental noise, drinking strong tea and coffee may lead to difficulty in falling asleep; heart fire may also lead to difficulty in falling asleep or insomnia. 2. People who have difficulty in sleeping should actively consult a doctor, do relevant examinations, and combine the four diagnoses of traditional Chinese medicine (looking, smelling, questioning, and cutting) to identify and treat the symptoms. Try to stay away from bad sleeping environment, sleeping environment air should be fresh, the environment should be quiet, so as to facilitate a good sleep. People who have difficulty in falling asleep should actively seek medical treatment, do not self-medicate to avoid adverse results, and should be treated according to standardized treatment under the guidance of physicians.