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February 12, 2026<\/p>\n
2 min read<\/p>\n
Add Us On Google<\/span>Add SciAm<\/span><\/span><\/p>\n \u2018Smart Underwear\u2019 could help unlock secrets of human flatulence<\/p>\n An intrepid team of scientists has created \u201cSmart Underwear\u201d to measure human flatulence in a bid to better understand our farts<\/p>\n By Claire Cameron edited by Tanya Lewis<\/span><\/p>\n busra İspir\/Getty Images<\/p>\n Whether you\u2019re breaking wind, farting hard or just letting out a quick toot, flatulence is\u2014whether you want to admit it or not\u2014as much a daily necessity as breathing. But exactly how often the average person lets one rip and what that says about their body is something of a mystery.<\/p>\n \u201cWe don\u2019t actually know what normal flatus production looks like,\u201d said Brantley Hall, an assistant professor at the University of Maryland, in a statement. (Flatus is the technical term for a fart.) \u201cWithout that baseline, it’s hard to know when someone’s gas production is truly excessive,\u201d he added.<\/p>\n Smart Underwear, a wearable device co-created by Hall and his colleagues, could help provide an answer to the pungent question. (Hall has applied for patents related to the technology and is co-founder of a company that has licensed it.)<\/p>\n If you’re enjoying this article, consider supporting our award-winning journalism by subscribing. By purchasing a subscription you are helping to ensure the future of impactful stories about the discoveries and ideas shaping our world today.<\/p>\n The wearable isn\u2019t truly underwear but rather a device that snaps on to garments and uses chemical sensors to track intestinal gas, especially hydrogen, which is produced by microorganisms in the gut. Typically, farts are a mix of microbe-derived hydrogen and occasionally methane, as well as carbon dioxide and oxygen produced by the body.<\/p>\n Brantley Hall\/University of Maryland<\/p>\n In a study of the device, Hall and his team found that healthy adults fart some 32 times a day\u2014although some tooted a mere four times, while others passed wind 59 times in a day. The study did not measure whether the farts were smelly or audible, however.<\/p>\n Hall and his team tested the device on 19 healthy adults, who all wore it in their underwear for a week while they were awake, except when they were engaged in heavy exercise or traveling. In another experiment, 38 participants wearing the device followed a special low-fiber diet for four days. On day four, the researchers gave these participants fiber supplements\u2014which made them produce more hydrogen gas\u2014to see if the Smart Underwear could tell the difference. As hoped, the Smart Underwear detected the heightened microbiome activity in the presence of fiber, according to a paper describing the study, which was published in Biosensors and Bioelectronics: X.<\/p>\n The range in daily fart frequency challenges \u201cthe assumption that a median amount of flatus per day can adequately describe human physiology,\u201d Hall and his co-authors write in the paper. Knowing how much the average person farts can help inform treatments for people who experience excessive flatulence or other problems.<\/p>\n The Smart Underwear is just a first step. Hall also launched the Human Flatus Atlas to recruit and measure flatulence across the population. In particular, the researchers are interested in studying people who eat high-fiber diets but don\u2019t fart much and people who fart a lot.<\/p>\n \u201cWe\u2019ve learned a tremendous amount about which microbes live in the gut, but less about what they’re actually doing at any given moment,\u201d Hall said in the statement. The Human Flatus Atlas could help establish a population-wide baseline for flatulence. And that, in turn, could help researchers develop better treatments for gut health.<\/p>\n Editor\u2019s Note (2\/12\/26): This article was edited after posting to correct the description of experiments in the study.<\/p>\n If you enjoyed this article, I\u2019d like to ask for your support. 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I hope you\u2019ll support us in that mission.<\/p>\n","protected":false},"excerpt":{"rendered":" February 12, 2026 2 min read Add Us On GoogleAdd SciAm \u2018Smart Underwear\u2019 could help unlock secrets of human flatulence An intrepid team of scientists has created \u201cSmart Underwear\u201d to measure human flatulence in a bid to better understand our farts By Claire Cameron edited by Tanya Lewis busra İspir\/Getty Images Whether you\u2019re breaking wind,<\/p>\n","protected":false},"author":1,"featured_media":44380,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[50],"tags":[1110,4932,1965,23050,659,2337,384],"class_list":{"0":"post-44379","1":"post","2":"type-post","3":"status-publish","4":"format-standard","5":"has-post-thumbnail","7":"category-environment","8":"tag-average","9":"tag-built","10":"tag-device","11":"tag-fart","12":"tag-find","13":"tag-person","14":"tag-scientists"},"_links":{"self":[{"href":"https:\/\/naijaglobalnews.org\/index.php?rest_route=\/wp\/v2\/posts\/44379","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/naijaglobalnews.org\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/naijaglobalnews.org\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/naijaglobalnews.org\/index.php?rest_route=\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/naijaglobalnews.org\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=44379"}],"version-history":[{"count":0,"href":"https:\/\/naijaglobalnews.org\/index.php?rest_route=\/wp\/v2\/posts\/44379\/revisions"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/naijaglobalnews.org\/index.php?rest_route=\/wp\/v2\/media\/44380"}],"wp:attachment":[{"href":"https:\/\/naijaglobalnews.org\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=44379"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/naijaglobalnews.org\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=44379"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/naijaglobalnews.org\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=44379"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}On supporting science journalism<\/h2>\n
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