How does your body work? Read the text about our nervous system. Complete the missing words. Nervous systemThis system controls everything that you do. The controls what you think, and what you feel. It helps to remember the information when you learn. The brain is the main organ of nervous system. It messages to your body organs and tells them what to do. To keep your brain healthy, you need to keep it . Never stop learning something new. Reading is a good exercise for brain. Eat healthy food, because vitamins and minerals will help to build strong nerves.​