OH FARTS! Passing gas can be one of the amusing or embarrassing parts of your day. How you feel about tooting can be influenced by lots of factors including where you are, who you are with, how loud it is, and- most importantly- the smell. Speaking of which, what causes the smell of farts? Is it genetics? We asked Masters of Science candidate Kaila Gabriel to help us find the answer.

Got a question that’s tying your stomach in knots? Send it to us at BrainsOn.org/contact, and we’ll help sniff out an answer.