The recent old fart is related to improper diet, indigestion, imbalance of intestinal flora, and cold in the abdomen. Some people experience increased exhaustion due to dietary problems, such as eating a lot of soy foods, sweet potatoes, chestnuts, etc. in their diet. It will be because the food contains too much protein starch and therefore produces a lot of gas during digestion, thus leading to increased exhaustion. Some people have increased exhaustion because they have indigestion. When indigestion occurs, the food in the intestine will be in a semi-digested state, which will not only cause irritation to the intestinal mucosa, but also lead to hyperactive intestinal peristalsis, so it will be accompanied by abdominal distension and increased exhaustion. Once there is an imbalance in the intestinal flora, harmful bacteria in the intestinal tract will proliferate, such as the excessive growth of gas-producing bacteria, will react with food residues to produce a lot of gas, resulting in increased exhaust. Some people do not pay attention to keep their abdomen warm when they sleep, resulting in a cold abdomen. When the abdomen is cold, the intestinal tract will have a stress reaction, and at the same time the intestinal absorption function of gas will be damaged, which will be accompanied by increased exhaust gas performance.