From Chris, Grade Five: "Why does your brain make you itch?"
One Possible Answer: Chris found the following answer using the web. He looked at the site www.sciencenet.org.uk/. This is the answer that he found: Itching is a feeling that you get when your body is warning you that you are touching something bad. When you touch something bad, your body releases a chemical called histamine. This chemical stimulates your nerves, and the nerves tell your brain that your skin is itchy.
Other questions: