Did you know that there are more nerve cells in your body than there are stars in the Milky Way? Take a tour of the world’s most incredible living machine: the human body. You’re a magnificent mass of weird and wonderful cells (and smells!) and we’re peeling back every layer to show you what really goes on in your insides. This visually stunning science guide explores the skeletal, muscular and nervous systems, as well as all the vital organs – from the heart to the brain – and the secrets behind how your senses work, plus much, much more!Each volume in the Factology series provides a fast-paced and fun introduction to its subject, explaining key concepts and highlighting significant events in a manner that is clear, accessible and entertaining. The KS2 and KS3 school curriculum is consulted when devising each volume, to ensure that the books cover important educational topics, making them a perfect teaching aid for learning history and STEM subjects.