As the saying goes, “if you walk a hundred steps after dinner, you can live 99 years”. In fact, this is not scientific. In terms of digestive physiological function, the stomach is in a full state after dinner, and at this time, it must ensure that there is sufficient blood supply to the gastrointestinal tract for preliminary digestion. A proper rest after meals can ensure more blood supply to the gastrointestinal tract.
If you take a walk immediately after a meal, the blood needs to be transported to other parts of the body, and the blood supply to the gastrointestinal tract will be correspondingly reduced, and the food will not be fully digested. Besides, digestive juice in the stomach is produced by the conditioned reflex of eating food. Only when the stomach is full can gastric juice be secreted vigorously. If you take a walk after a meal, the stomach will move rapidly in the activity, pushing the food that has not been fully digested into the small intestine too early, so that the nutrition of the food can not be fully digested and absorbed. Some people’s “satiety” is just that their stomachs feel full, but nutrients are not absorbed into their bodies, and their bodies are still in a “hungry” state. If you get up and leave in a hurry at this time, part of the blood will be concentrated in the motor system, which will delay the secretion of digestive juice, destroy the normal digestion of the stomach, and easily induce functional dyspepsia.
Some people are “unable to walk” after meals, such as patients with gastroptosis. These people should not take a walk after meals. Even general walking should be reduced. They can choose to lie flat for 10 minutes after meals. Because the stomach is full of food after meals, if you carry out upright activities at this time, you will increase the vibration of the stomach, increase the burden of the stomach, and cause or aggravate gastroptosis. Patients with cardiovascular and cerebrovascular diseases should avoid exercise after meals. Because the gastrointestinal activity increases after meals, the blood flow of the gastrointestinal part increases, and the blood flow of the brain decreases accordingly, thus aggravating the disease.
In addition, walking after meals is also harmful to patients with coronary heart disease, hypertension, cerebral arteriosclerosis, diabetes, chronic esophageal disease and gastric surgery. It may cause angina pectoris, aggravate dizziness, epigastric fullness and discomfort, postural hypotension, premature beats, tachycardia, and paroxysmal atrial fibrillation.
In addition, if the temperature is low in winter, the temperature difference between indoor and outdoor dining environment is large, and you eat red and sweat profusely when you eat. If you leave the restaurant in a hurry and walk under the stimulation of the cold wind, the capillaries in sweat glands and subcutaneous tissues will contract suddenly, which is easy to cause wind chill and headache, and also increase the burden of blood supply to the heart. Therefore, it is more appropriate to sit quietly after dinner, close your eyes for 30 minutes, and then move again.
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