"The control and command center of the whole body, we wouldn't be able to breathe, have a heartbeat, avoid danger, or sleep without the nervous system. Find out what illnesses affect the nervous system and how medical research has advanced our knowledge. Full-color illustrations help readers visualize the nervous system at work."--. Provided by publisher.

"A Crabtree forest book". -- Title page.

How Do We Know? -- How It Works -- When It Doesn't Work -- Keeping the System Healthy -- Looking to the Future.