It is easier to fart while standing up or lying down?

We know you fart. And probably a lot more than you are willing to admit. And it stinks. And sometimes you just want to get it out so you can get on with your life (sans farts). These scientists are here to help you out by determining if you can expel your gas more efficiently by standing or lying down. How did they control for the amount of gas their subjects had, you ask? Why, by blowing their intestines up with gas and measuring how much they farted, of course!