Zen digesters” rarely fart. “Hydrogen hyperproducers” fart a lot. Scientists are investigating what is typical.

Study participants wearing the Smart Underwear farted on average 32 times a day, which is more than the 10 to 20 farts a day that people have self-reported before.

Do quiet farts smell worse than loud ones? Doctors explain why flatulence happens, what causes gas to smell, and whether the silent-but-deadly phenomenon is real.

Farts, or flatulance, is caused by bacterial fermentation. When undigested food such as sugar, fibre or starch reaches the colon, it is broken down by bacteria, which then produces gas. Aerophagia, or ...

The University of Maryland is using “smart panties” to find out how many times a day people fart. The results could be used to help diagnose and treat illnesses.