Protein folding is like when you take a piece of paper and fold it into a shape, like an airplane or a boat. In protein folding, instead of paper, you’re folding proteins. Proteins are like tiny pieces of building blocks found in your body. They work together to help your body do things like breathe, move, and think. When proteins are first made, they look like a long, wiggly chain. To do their job in your body, the proteins must be folded up into the correct shape. This shape helps other proteins work together to do the things your body needs. Protein folding is like putting the puzzle pieces together to make a picture.