The Science of Really Gross Things Grossology is an outrageous alternative health lesson, introducing the science behind the body's most disgusting features, from burps and vomit to scabs and ear wax.

Most of the time you don't find your own smells and oozes too disgusting.

It's the same stuff from other people's bodies that's really foul - but the reasons for it are the same whether it's you, your teachers or your friends.

As an official Grossologist you'll find out lots of sickening stuff about everyone.