Mental Floss

THE BODY

How loud a fart is depends on a couple of factors.

Farts can make a lot of different noises. Some are high and squeaky, while others explode like a car backfiring—and some don’t make any noise at all.

Autumn Spanne












Celine Dion performs in London's Hyde Park.

Celine Dion recently announced that she has been diagnosed with stiff-person syndrome (SPS), a rare and progressive neurological disorder that only affects about one or two out of every 1 million people.

Jennifer Billock




The average adult human has 28 to 32 teeth, give or take a set of wisdom teeth. But besides the importance of brushing and flossing, how well do you know your chompers?

Amanda Green