The patient is sleepy after lunch for the following reasons: 1. Consider that after a morning of exertion, work and study, the patient’s brain and body are in a state of fatigue, and at noon the body is more sleepy, and the symptoms of sleepiness will appear. 2. After eating the peristalsis of the gastrointestinal tract to increase, to digest food, so a lot of blood distribution in the stomach is more, which will lead to a relative lack of blood supply to the brain, and the patient will feel sleepy and weak. 3, after lunch, patients have developed the habit of taking a nap in their life habits, and at noon, because of the biological clock, patients will show the symptoms of sleepiness. Therefore, after lunch sleepy patients should move around for a while, 20-30 minutes of activity before going to sleep, for the relief of fatigue in the afternoon is helpful.