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!