- A hormone is a chemical in the human body that causes changes in the body or the brain.
- When we get upset, our brains send out stress hormones. Sometimes these only make us more stressed.
- Sometimes, during pregnancy, hormones' will make women want to eat very strange things, like pickles and ice cream.
- Sex hormones help children develop into adults after puberty.
- My 16-year-old nephew has raging hormones! All he can think about is girls!
