Read this passage from an article titled "Thrills and Chills":
A lot of people love to be scared. Some like scary rides or skydiving. Others go to haunted houses or monster movies. Why do people go out of their way to get a fright? Experts say that, for some people, looking for thrills makes sense. Fear is the emotion we feel when we are in danger. It causes chemicals to flow through the body. As a result, our hearts beat faster. We sweat. We feel alert. Those reactions helped people stay alive long ago. If they saw a hungry wild animal, for example, they would be ready to fight or run away.