Why do clothes shrink in the wash?

Have you ever noticed how sometimes when you wash and dry a piece of clothing, it comes out a little smaller? Why does that happen? We asked science professor Dr. Mark Lorch to help us find the answer. Got a question that’s tumbling around your brain? Send it to us at BrainsOn.org/contact, and we won’t shrink away from answering it! See omnystudio.com/listener for privacy information.