Because in the process of chewing food, taste buds send signals to the central nervous system of the brain through the perception of different tastes, and then the brain sends instructions to the digestive system, leading to digestive movement. If you don't eat irritating substances for a long time, it will lead to loss of appetite, listlessness and weakness of limbs. Because its main component is sodium chloride, it is a neutral inorganic salt and has a taste. It is salty in taste and cold in nature, and enters the stomach, kidney and large intestine. Has the effects of clearing away heat and toxic materials, cooling blood, moistening dryness, invigorating kidney, relaxing bowels, killing parasites, diminishing inflammation, inducing vomiting and stopping diarrhea.