Traditional health habits tell us: "Walk a hundred steps after a meal and live to ninety-nine." A fruit won't go to a health center after a meal ... However, with the development of science, these old ideas have been challenged. Practice has proved that taking a walk after meals, taking a nap after meals, eating fruit after meals, brushing teeth after meals and drinking soup after meals are all unhealthy habits. And a new method of strengthening the body-pre-meal health care, is becoming fashionable. Practice has proved that this method, which is contrary to traditional concepts and habits, is scientific and can receive good fitness results.

Take a walk before meals:

Walking is an effective exercise for all ages. There is a saying in China, "Walk a hundred paces after a meal and live to be ninety-nine. It means that walking after dinner is good for health. But according to scientific analysis, it is not correct to take a walk after dinner. Because food is concentrated in the stomach after meals, a lot of digestive juice and blood are needed to digest food here. At this time, if you rest properly, the whole body blood can enter the digestive organs in moderation and fully digest food; If you take a walk 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 reduced accordingly, and the food will not be fully digested.

Walking after meals is especially unfavorable for patients with coronary heart disease, hypertension, cerebral arteriosclerosis, diabetes, gastroptosis, chronic esophageal diseases and gastric surgery.

It may lead to angina pectoris, aggravated dizziness, abdominal fullness and discomfort, postural hypotension, premature beats, tachycardia and paroxysmal atrial fibrillation. Walking before meals is different. At this time, the stomach is empty and there are no new fatty acids in the fat cells. Walking is easy to "convert it into heat and consume it." Therefore, experts advocate that fast walking, jogging and other weight loss exercises should be carried out before meals 1 hour, lasting about 30-45 minutes, and the effect is much better than after meals.

Take a nap before meals:

Sleep is very important for restoring physical strength, improving immunity and ensuring health. Many people have the habit of taking a nap. The traditional nap is after lunch, but when they wake up, they often feel dizzy, weak limbs and sore all over.

This is because after eating, blood rushes to the gastrointestinal tract to help digest food, resulting in a decrease in blood flow to the brain and limbs, so that the brain and limbs can not get enough oxygen and nutrition supply, and metabolites such as lactic acid can not be discharged in time, resulting in the above symptoms. The new way of lunch break is to take a nap before meals, that is, go home from work and eat some fruit or milk, then go to bed for a nap for half an hour to an hour, and then have lunch. Practice has proved that this kind of lunch break can effectively eliminate fatigue, stimulate appetite and make food fully digested and absorbed after meals.

Brush your teeth before meals:

Brushing teeth is a necessary means and measure to prevent dental caries, so people suggest that the frequency and time of brushing teeth is 3 times a day, 3 minutes each time. Traditional brushing is done after meals. Actually, this is unscientific. In recent years, some dental experts suggested that brushing teeth should be done before meals. This is due to the formation of dental caries, which is mainly the result of chemical reaction between tartar and sugar in food, forming acidic substances to corrode teeth. When people eat, the tartar has reacted with the sugar in the food, forming an acidic substance, and it is too late to brush your teeth. Therefore, only by removing tartar before meals can we reduce the formation of acidic substances and protect the cleanliness of teeth. In addition, after eating, especially acidic food will loosen the protective layer of enamel on the surface of teeth, so it is easy to brush off the protective layer of teeth when brushing teeth, which is very unfavorable to the bodybuilding of teeth. Therefore, it is recommended to brush your teeth 3-5 minutes before meals.

Eat fruit before meals:

Many people are used to eating fruits after meals, thinking that this can assist the digestion and absorption of protein, fat, sugar and other nutrients in food. That sounds reasonable. But some nutritionists think this is not true. Because eating fruit after meals will lead to digestive dysfunction for a long time, because food can be slowly discharged after entering the stomach for 1-2 hours, and fruit can be easily absorbed if it does not stay in the stomach for too long, which may easily cause abdominal distension, diarrhea or constipation. If you eat fruit before meals, you can keep your immune function normal. Therefore, it is most appropriate to advocate eating fruit before meals 1 hour.