December 8, 2022 3:22 pm What Is Stiff-Person Syndrome? The condition is one that has forced singer Céline Dion to cancel shows. What is the neurological disorder, and how common is it? US & World Videos 0:37 Ex-Abercrombie CEO arrested on sex trafficking-related charges 9:07 Selena Gomez and Benny Blanco's sweetest moments 0:31 The price to watch Lionel Messi in Los Angeles 2:13 Real-life ‘Karate Kid' meets his inspiration 2:12 What to expect in court as Trump faces 2020 election charges in DC