Celine Dion's sister gives update on stiff-person syndrome, saying singer "has no control of her muscles"

Celine Dion's Sister Gives Update on Stiff-Person Syndrome Diagnosis

Celine Dion has 13 siblings! Meet the singer's family as her sister issues heartbreaking health update on stiff-person syndrome diagnosis

Celine Dion's Sister Gives Update on Singer's Condition Amid Stiff Person Syndrome Battle