It is hard to soak rice in boiling water, but because there is water, it is easier to swallow without full chewing. Eating like this for a long time is not conducive to digestion and will cause a greater burden on the stomach. Moreover, the water in the rice soaked in water will dilute the gastric acid and reduce the bactericidal effect of gastric acid, and pepsin will not give full play to its role.

The food we eat is processed in our mouths first. Hard teeth are like a clever grinder, cutting and grinding large pieces of food into small particles. At the same time, the salivary glands keep secreting saliva, and the tongue keeps stirring food, so that food and saliva are fully mixed. After mixing evenly, amylase in saliva can react with starch in food to convert starch into maltose, which is convenient for further digestion and absorption in gastrointestinal tract. Also, when the tongue is stirring food, the taste of food can stimulate the taste nerve on the tongue. The taste nerve immediately reports to the brain. After receiving the report, the brain immediately orders the stomach and pancreas to produce digestive juice and prepare to receive food. ?

However, boiling water to soak rice destroyed this process. Rice with water often slips into the stomach before it is chewed. Insufficient chewing of food, less saliva secretion, uneven mixing and stirring with food, amylase diluted by water; In addition, the taste nerve is not fully stimulated, and the stomach can't receive signals, so there is less gastric juice secreted, even if a little gastric juice is diluted by water. In this way, all the processes of the digestive system are disordered, which will lead to stomach problems over time.