Because there is caffeine in coffee that excites the cerebral cortex, patients who drink coffee during the day are prone to have trouble sleeping at night. In this case, the patient does not have to worry too much, the patient can be through the natural relaxation therapy, must have confidence in this area, the patient can drink more water or juice to accelerate the metabolism of caffeine in the body. Patients can bubble their feet with hot water, drink a glass of hot milk to create a comfortable sleep environment, or patients can take oral diazepam, clonazepam, dezopiclone, lorazepam-type drugs to sedate, sleep, inhibit the functional activity of the cerebral cortex, allowing patients to quickly enter the state of sleep. Patients who are sensitive to caffeine must pay attention to the daytime or night must drink less coffee or no coffee, sensitive body after drinking coffee, will have a certain impact on sleep, may also lead to patients with a rapid heart rate and other problems.