It is generally recommended that after 30 minutes after lunch and then nap will be better, because just after lunch gastrointestinal tract will have a lot of blood accumulation, to help the body to decompose and digest, absorb food, increase the peristaltic and absorption function of food. If at this time after lunch can lightly carry out some walking and other activities to help the intestinal tract peristalsis, if this time immediately nap will lead to a large amount of food reflux may. Because after lying down food will be through the lower esophageal sphincter reflux into the esophagus, will lead to gastric acid and bile salt damage to the esophageal mucosa, will aggravate some symptoms of esophagitis, such as reflux, heartburn, nausea, vomiting and so on these situations. So it is recommended that after lunch, after a light walk for about 30 minutes for a nap more good, nap time is also about control in 30-60 minutes of time more ideal.