Do you ever think about your body and how it works?The human body is extraordinary and fascinating and, well... pretty weird. Yours is weird, mine is weird, your maths teacher's is even weirder.This book is going to tell you what's actually gong on in there, and answer the really important questions like: Are bogeys safe to eat?How much time do you spend on the toilet? -- Cyngor Llyfrau Cymru