Going to bed hungry may have bad effects on the body such as poor sleep, gastrointestinal disorders and malnutrition. 1. Poor sleep: usually only comfortable, the patient can ensure the quality of sleep. If the patient goes to bed hungry, the obvious hunger may lead to difficulty in falling asleep, and even after falling asleep, it is difficult to enter deep sleep, and the quality of sleep is poor. 2. Gastrointestinal diseases: the general gastrointestinal fasting time should not be more than 10 hours, if the patient does not eat at night, fasting time is too long, gastric acid will erode the gastric mucous membrane barrier, which is easy to cause gastric disease. 3. Malnutrition: If you don’t eat dinner and go to bed hungry for a long time, it is easy to lead to malnutrition, which is not conducive to the growth and development of the patient and affects your health. Usually, you should develop a good diet, work and rest methods, avoid excessive hunger and satiety. If there is obvious discomfort, you should go to the hospital in time to avoid delays.