Celine Dion’s sister says the Grammy Award-winning singer doesn’t have control of her muscles as she continues to live with a rare neurological disorder.
Claudette Dion says in a new French-language interview that her sister is working hard to overcome her illness, called “stiff person syndrome.”
She tells “7 Jours” that the illness affecting an estimated one in a million people is not yet well understood by current medical science, noting that vocal cords are muscles too.