Yes, a fart is what we commonly call a fart, but don’t think it’s a curse, there’s a lot to learn here! Studies show that every person farts 14 times a day! Farting is a normal thing. Farts are produced in three ways: when swallowing food, air enters the digestive tract; food in the intestine is fermented by bacteria; and gas in the blood seeps into the intestine. Why do farts stink? In fact, 99% of the components of farts are odorless, but why do people have stinky farts? There are two types of stinky farts: 1. loose stools, the fart stool released smells very strong, and if the stool is discharged, the fart is discontinued. From this point of view, “farts are the head of the shit” is justified. 2, the fart odor is particularly strong, as smelly as rotten eggs. This is due to eating too much protein-based food, so that the intestinal tract of food retention. Stagnant protein food in the digestive tract is decomposed, the production of amines, amines have this bad smell. The solution is to reduce the amount of food eaten, especially the amount of protein-containing food. The truth about farts. Some farts do not smell bad because they contain only hydrogen and nitrogen. Fart that stink because they contain sulfide, usually hydrogen sulfide. How powerful is hydrogen sulfide? A concentration of 4.7 ppb makes 50% of the population smell. And exposure to a concentration of 50 ppm can cause eye damage. And after a few puffs of a 100-150 ppm concentration, your sense of smell will be gone. After 5 minutes of exposure to 800ppm concentration of gas, 50% of people will die. And one puff of gas at 1000 ppm concentration will cause you to run and collapse, usually to death. Contrary to popular belief, the rude brother that slips out of the back of your ass and can ignite is probably not methane, but hydrogen. A fart from a healthy person may contain hydrogen, nitrogen, carbon dioxide, and some small amounts of methane and oxygen. Farts are formed in two main ways – by inhaled air and by digestion of food. Swallowed air provides the digestive tract with nitrogen and oxygen, mainly the latter. On the flip side, nitrogen gas flows unimpeded through the digestive tract and is the main component of farts. Nitrogen has the advantage of being non-flammable and makes up about 78% of the earth’s atmosphere. The remaining components of farts include the very small but powerful hydrogen sulfide (rotten egg smell), which is usually produced by the fermentation of biological products and the breakdown of microorganisms in the intestinal tract. These microorganisms include some primitive life forms such as archaea. Farts consisting of hydrogen, hydrogen sulfide and methane are usually combustible, and the color of combustion is usually yellow and orange due to the presence of hydrogen. If the color of combustion is blue, it is usually due to the presence of large amounts of methane in the fart. Methane is not commonly found in human farts, and usually only 1/3 of human farts contain methane. Even so, a small study (only ten people participated, testing their diet) found that only farts containing methane were produced after eating a large amount of fiber-based foods. (Farts that did not consume fiber-based foods were composed entirely of nitrogen.) The average methane content in farts after eating fiber-based foods was 3.6%, and most farts were composed of hydrogen (51%) and nitrogen (30%). It is not entirely clear why only a few people can fart with methane, but it is at least related to the microorganisms in the gut. So far, only three microorganisms have been identified as capable of producing methane. Scientists have identified several factors that can predict whether a person can fart methane, the most important of which is obviously the environment in which you live (it’s not clear whether genes play a role). For example, 77% of Nigerians and 87% of South Africans are able to fart methane, but only 34% of Norwegians and 35% of people living around Minneapolis are able to fart methane. In addition, adult women are more likely to emit methane farts, while younger children are less likely. Finally, if your parents can fart methane, then you have a very good chance of having this special ability, as one study showed that two people who could fart methane had a 95% chance of having a child who could fart methane. The Darwin Awards once tested an urban wonder who fed on beans and cabbage and was eventually found dead in his own bed. The autopsy report showed that his blood contained large amounts of methane, and it is believed that the room was completely closed and he died from inhaling his own farts. Most arguments about the veracity of this story lie in the ability of methane to decompose rapidly in an environment where oxygen is present. In order to kill himself with methane, the man would have needed to fart 6L of methane-laden gas in his sleep. Recent studies have also found that methane farts are associated with several gastrointestinal diseases, such as diverticulosis, inflammatory bowel disease, bowl irritation syndrome, constipation, and colon cancer. While there is no clear answer as to why the two are related, some believe that methane decreases the speed at which the intestines function. Regardless, be careful with farting; in 2008, a 12-year-old boy suffered burns to the back of his leg and 18 percent of his thumb after lighting a fart on fire and ignoring a nearby can of gasoline. In addition to these extreme cases, the now-defunct website Fartcloud did a survey that showed that one in four people burn themselves when they light a fart on fire. Farts are actually a very dangerous gas, and sometimes the hydrogen contained in them can be as high as 47%, a situation where fireworks are strictly forbidden. However, generally speaking, very few people will be able to light a fart on fire, so don’t worry too much that your butt will “open up”. Is excessive farting a disease? The reasons for farting can be summarized into two main categories. 1, eat food that is not easy to digest, such as some starchy, bean-based food. 2, because of intestinal diseases. Due to the problem of digestion and absorption function of the small intestine, or taking some drugs that inhibit the absorption of sugar in the small intestine, etc. If it is due to diet, it is suggested that starchy foods should be appropriately reduced and protein and vegetable foods should be increased to make the diet balanced. So, a fart is a kind of gas that swings around in your stomach and is accidentally released.