Inside your body
Your body can do some amazing things. It can walk and chew gum at the same time — and clean the air you breathe, heal wounds, digest food, fight germs, and more. If you understand how it works, you can help keep your body from having problems and appreciate it when all goes well.
What are the major systems of your body? Check them out here.
Content last reviewed April 15, 2014
Page last updated May 23, 2014