How often do we fart? Turns out, scientists may not be completely sure -- but one new invention is looking to change that.

Ever wondered how often you fart on an average day? Scientists in the US have been pondering the same and, for the first time, have been able to put a precise number on how often people pass wind ...

Add Yahoo as a preferred source to see more of our stories on Google. COLLEGE PARK, Md. (DC News Now) — How often do we fart? Turns out, scientists may not be completely sure — but one new invention ...