In a study of the device, Hall and his team found that healthy adults fart some 32 times a day—although some tooted a mere four times, while others passed wind 59 times in a day.

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’t fart much and people who fart a lot.