We spend lots of money and heaps of effort keeping our houses, clothes and children clean and tidy. We worry about germs getting into our food and beasties burrowing into our beds.
Who, though, is worrying about how to make sure our internal waste disposal systems are cleaning up inside us? What if we have glistening external surfaces and heaps of gunge inside?
One thing you can be sure of – if you are mucky inside, sooner or later it will show outside. Read on to find out why.