![]() ![]() “There are likely many factors that determine the size of the anus in general at that moment of a fart, including general resting tone of the anus and other behavioral factors,” says Dr. And the larger the opening at the moment, the lower the sound. He compares it to a musical instrument: the smaller the size of the exit point, the higher the pitch-and perhaps more squeaky it will be. "The sounds of farts are very much shaped by their expulsion velocity as well as the shape and size of the anal sphincter opening at the moment of passing," says Dr. Despite popular belief, your fart noises have nothing to do with the flapping of your butt cheeks. Your fart sounds depend on the vibrations produced as the gas exits your anal canal, says Dr. Small gas bubbles come together into larger gas bubbles en route to it exits, and when your body lets out those gases, that’s your fart. The intestines contract and move their contents including gas via peristalsis-or the contractions that move waste through your digestive tract-towards your anus. "As food is digested, gasses including carbon dioxide, methane and hydrogen build up within the intestines and seek their way out,” says Dr. Here’s what’s going on (For even more info, check out the big, stinky guide to the fascinating history of farts). ![]() So why do your farts sound different? And is there anything you can do to make a loud fart turn into a silent fart?įirst of all, farts depend on a lot of variables, including what you eat, drink, and the movements of your bodies when gas escapes. In fact, some sneak under the radar pretty subtly, while others, well, you can hear those go off from the next room. But each fart you release isn’t exactly the same. In fact, the average person farts about 14 times a day with an average volume of one-half liter of gas per day, says Michael Rice, M.D., gastroenterologist at the University of Michigan Medicine Gastroenterology Clinic. And if you let her rip when you’re really relaxed? Pretty much silent.Everybody farts. Sometimes we try to let gas out slowly, that’s a different sonic experience.īut if we break wind, when we are more relaxed, it’s like the sound a tuba player makes when his lips are more relaxed. ![]() Pass just a little gas, and the sound changes again. The same principle applies to flatulence. ![]() When you blow the same amount of air through the opening with super tight lips, the sound changes. With a tuba, for instance, to make a sound, you have to press your lips tightly together and blow air through the opening of the instrument. In this case, when the opening of your bum vibrates, it goes ‘pfft.’įarting isn’t too different from playing a brass instrument. When a lot of gas is pushed out of that tiny opening in short order, it vibrates the tissue. The whoopee-cushion noise comes from the end of the digestive track – that opening of your rear-end. Third, the size of the hole the gas rushes through, that hole is, of course, the one we expel waste from, the hole in our rumps. Second-force, how strongly the gas is pushed out. First-volume, the amount of gas you pass. Not necessarily.īasically the noise factor has to do with three things. A huge misconception in the world of flatulence is that when you toot, your butt cheeks are to blame for the noise. ![]()
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