Many people suffer from unruly and matted hair during the cooler season. The cold and dry heated indoor air and the friction caused by hats and scarves puts a strain on hair. And long hair is ...

Following is a transcript of the video. Narrator: If you peel back the layers of Rapunzel's hair in "Tangled," you'll see just how complicated animating 3D hair can be. But back then, Disney had ...