In this eye-catching book, readers can explore the hidden inner workings of the human body, look inside different organs and body systems and learn about how to look after their own physical and mental health at the same time. Readers use the see-through magic lens to reveal how our bodies function and the different body parts hard at work inside us. Find out how your senses work with your brain to show us the world around us, how doctors and nurses spot diseases and how we turn food into energy... and poo.