Operation Ouch! based on the popular CBBC series and recent winner of the Booktrust Best Book Award for 'Best Fact Book'!

Can you guess which of these amazing facts Operation Ouch! has in store for you?

a) That in your lifetime you'll spend a whole year on the toilet
b) That you shed at least 30,000 skin cells every day
c) That the biggest muscle in your body is in your bum

ANSWER: All three of course!

Join Dr Chris and Dr Xand as they take a tour of YOUR BRILLIANT BODY!

Find out the incredible things your body can do, test your gross-out knowledge and try out cool body tricks at home.

This book was recognised by the Booktrust Book Award. The Book Trust Best Book Awards with Amazon Kindle, which took place in 2014, aimed to unearth the very best childrens books the UK has to offer, and to honour authors and illustrators who continue Britains proud heritage of storytelling.

This is book 1 in Operation Ouch .

There are 224 pages in this book. This book was published 2014 by Hachette Children's Group .

Dr Chris and Xand van Tulleken grew up in London and trained in medicine at Oxford University, graduating in 2002.