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.