What causes sleep after dinner?

After eating, people are easy to get sleepy, because the blood system will shunt more blood to the gastrointestinal tract to help digestion after eating. At this time, the blood flow in the brain will decrease. Under the state of ischemia and hypoxia in the brain, it is easy to feel sleepy at this time. Many people will choose to lie down and rest after being sleepy. This is not conducive to health. It is easy to gain weight. After lying down and resting, people will easily fall asleep. At this time, the activity of digestive organs will also weaken. Causing food to eat, can not be digested in time, will also cause pressure on the gastrointestinal tract, but also can make the heat in the food into fat caused by obesity, so do not advocate lying down immediately after dinner rest. Second, you can go out and look into the distance. If you are indoors for a long time, you can also add colorful and vital things indoors, such as flowers and plants, which is conducive to eliminating fatigue. Third, you can use fragrant chewing gum, or wash your face with cold water, but you can also choose to use hot water, so that you can also solve your drowsiness. When you are sleepy, you can also listen to some beautiful and bright tunes and exciting music, or enjoy cross talk, sketches, jokes, etc., to excite nerves and dispel chills, or you can also smell like wind oil, cool oil, toilet water, all of which can drive away drowsiness and cheer up.