What is the complex system inside you controlling your every move?

How does your Nervous System cause you to run, jump, dance and...pee? What do the millions of neurons in your brain do? How is it you're able to use your five basic senses? For free home activities sign-up at www.WhoSmarted.com See Privacy Policy at https://art19.com/privacy and California Privacy Notice at https://art19.com/privacy#do-not-sell-my-info.