UMD Scientists Create 'Smart Underwear' to Measure Human Flatulence

Fart‑tracking underwear drops: taxes, Ig Nobels, and “smart fart panties”

TLDR: UMD’s clip‑on “Smart Underwear” measures real‑world farts and found people pass gas about 32 times a day, powering a nationwide Human Flatus Atlas. The comments? A riot—tax fears, Ig Nobel jokes, and sign‑up FOMO—mixing meme chaos with real curiosity about gut health and diet insights.

Science just strapped on Smart Underwear, a discreet clip‑on from the University of Maryland that tracks gas and found we toot way more than we admit—about 32 times a day on average. The plan? Build a nationwide “Human Flatus Atlas” and finally define what “normal” is for gas. The internet reacted like… well, a whoopee cushion at a dinner party.

The hottest take: taxes. One commenter wondered if fart data is step one toward “methane fines,” with others pointing at Denmark’s livestock taxes and joking, “Humans are next.” Then came the award chatter: “Future Ig Nobel?” one user wrote, while another flexed quantified‑self energy—signed up instantly—only to get the heartbreaking “overwhelming demand” email. Meanwhile, the meme factory revved: “Tired: poop camera. Sleepy: piss sensor. Wired: smart fart panties.” Someone even tied it to the economy: “When gas hits $5 a gallon, scientists get creative.”

Under the jokes, people are curious: the device sniffs hydrogen (a gut‑microbe gas) and can flag diet changes with high accuracy, and the study is recruiting “Zen Digesters,” “Hydrogen Hyperproducers,” and plain “Normal People.” It’s like a continuous glucose monitor, but for your butt—equal parts health tool and comedy gold, and the comments can’t stop ripping it, literally and figuratively.

Key Points

  • UMD researchers developed Smart Underwear, a wearable that continuously measures hydrogen in human flatulence using electrochemical sensors.
  • A study found healthy adults average 32 flatus events per day (range 4–59), higher than prior estimates of about 14 (+/-6).
  • Older estimates were lower due to invasive methods and self-reporting limitations, including missed events during sleep and recall bias.
  • Hydrogen tracking directly reflects gut microbial fermentation; the device detected increases after inulin intake with 94.7% sensitivity.
  • UMD’s Hall Lab launched the Human Flatus Atlas to establish normal flatus ranges and correlate patterns with diet and microbiome across U.S. adults.

Hottest takes

“a tax for methane emissions?” — toenail
“Future Ig Nobel candidate?” — zoklet-enjoyer
“Smart fart panties” — kotaKat
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