Why Do We Feel 'Chills' from Music?

Have you ever heard a song and felt tiny goosebumps pop up on your arms? That feeling is called musical frisson. It happens when music surprises you in a happy way. Imagine you are climbing a steep hill. You think you are almost at the top, but then there is one more step! When the singer finally hits that high note or changes the beat right when you expect it, your brain gets excited. This excitement sends little messages to your skin, making you shiver. It is like a warm hug for your nerves. Musicians know how to do this on purpose by building up tension and then releasing it suddenly. So next time you hear your favorite song make your hair stand on end, remember it is just your brain having a fun surprise party.