Books in Stickmen's Guides to Your Awesome Body series

Ba-boom, ba-boom, ba-boom . . . your incredible heart beats more than once every second, no matter what you're doing. And your lungs pull in up to 145 gallons of oxygen each day. So how are your heart and lungs connected, and what do they do? Join the Stickmen as they explore your body to find out how your heart pumps blood, how oxygen travels through your body, and how your body fights off germs. You'll discover why you need two trillion red blood cells, how exercise affects the body, and what exactly is inside your lungs. Colorful diagrams and fascinating text show how your circulatory system works to keep you fit, warm, and alive!

Muscles help you run, jump, play sports, and even sit still long enough to read this book. Your bony skeleton holds you up and keeps everything in its place. Let the Stickmen give you a tour of your incredible body! Find out why muscles are strong and how they get even stronger, how many bones make up your skeleton, and how your body twists, bends, and moves. Along the way, you'll discover the world's oldest skeleton, the longest and strongest muscle, and more. Colorful illustrations and fascinating facts reveal the inner workings of your muscles and bones.

Just think, every single thing you do is handled by an amazing computer inside your head―your brilliant brain! And it's helped by your body's internet―your nervous system. Join the Stickmen to discover how spidery nerve cells send messages to the brain in seconds, how quick reflexes keep you safe, and how different parts of your brain are in charge of different thoughts and actions. Learn how all the parts of your body work together with the brain to help you to see, hear, smell, and make memories. Fun illustrations and fact-filled text reveal the mysteries of your brain and what it is that makes you so smart!

Food is the body's fuel―but what happens to each yummy mouthful from the moment you take a bite? The Stickmen unravel the long process of digestion carried out by your winding system of guts. Learn about your stomach and its army of acids, the chemical powerhouse in your liver, and your busy kidneys that keep you toxin-free. Find out how you get energy and heat from food and how your body gets rid of the stuff it doesn't need. Illustrations, diagrams, and text tell all about the mashing, squeezing, pushing, and filtering that happen along your digestive system.