How the nervous system work Your nervous system tells your body what to do.It includes your brain, spinal cord, and forty- seven miles of nerve. Nerve are long,thin fibers.They carry messages around the body in the form of tiny signals.
Beneficial choices Protect your nervous system by wearing a helmet to protect your brain when you’ re skateboarding.
Harmful choices How to get concussions. Every year, more than 400,000 kid get concussions from car crashes, playground, or sport.
All way wear a helmet then you are ride a bike, play sport