Celine Dion's Health Battle: Losing Control Over Muscles

Celine Dion's sister, Claudette, provided an update on the singer's battle with stiff person syndrome, a rare neurological disorder that causes muscle spasms and affects mobility. Dion, who was diagnosed last year, has lost control over her muscles and had to cancel her Courage world tour. Despite the challenges, she hopes to make a comeback to the stage. Stiff person syndrome is a progressive and incurable disorder, and Dion's case is rare, which has limited research on the condition. Dion has received an outpouring of support through her family charity, Fondation Maman Dion.