Under normal circumstances, the gas entering the intestine is used to maintain the gas balance in the body. Most of the gas discharged from the anus is bacteria in the intestine, which plays an important role. There are many kinds of bacteria in human intestines. Under normal circumstances, these bacteria are beneficial to our health, and their existence contributes to the digestion of food. At the same time, it is because of their existence that people fart.
Under normal circumstances, the function of bacteria is to decompose protein into amino acids, and then decompose amino acids into a class of substances called "amines", generally "cadaverine" and "putrescine". From these two words, we can know that these two substances have a very strong pungent and rancid smell. If these two substances are produced, there will be smelly components in natural fart. Then, some bacteria can also produce ammonia, which is pungent and unpleasant. I'm sure everyone has asked about this smell in the chemistry experiment class.
Moreover, amino acids containing sulfur can be decomposed into hydrogen sulfide gas by bacteria. In chemistry class, the teacher said that hydrogen sulfide is a gas, which smells like rotten eggs and stinks. In addition, many bacteria in the intestine can produce gases, such as carbon dioxide and methane. These gases are mixed with putrid substances to form smelly farts.
Under normal circumstances, farting and stinking will not affect your health. But if you do this for a long time and then feel a little too much, you should see a doctor in time. After all, nobody wants to smell it.