Find out the facts behind the fastest, strongest and longest human body record breakers and explore the science behind them. This book uncovers the brilliant body parts that keep us healthy and active, allow us to achieve incredible feats of speed and survival and make quick decisions to keep us safe.Children can learn facts such as: why is the small intestine so big?Which muscle is constantly moving? How long can you survive without air?Packed full of bold images and surprising information, the Record-Breaking Facts series for children aged 7 plus, dives into a range of fascinating facts and reveals the secret science behind them.Titles in the series: Animal Facts / Dinosaur Facts / Earth Facts / Human Body Facts / Space Facts / Technology FactsContents (Record-breaking Human Body facts): Prize-winning pumping / Feeling sleepy? / Brain drain /Almost freezing /Mega-fast muscle / So many cells / Not so small / Deep breath in ... / Hard as a ... tooth? / Rocket-powered run / Baby bones / Body invaders / More incredible human body records / Glossary / Further information / Index