Céline Dion's Sister Provides Troubling Health Update on Singer's Stiff-Person Syndrome

Céline Dion's sister revealed that the singer has lost control over her muscles due to her diagnosis of stiff-person syndrome, a rare neurological disorder. The condition has caused severe muscle spasms, affecting her mobility and ability to sing. Dion's dream is to return to the stage, but the extent of her future involvement remains uncertain. Stiff-person syndrome is characterized by progressive muscle stiffness, painful spasms triggered by environmental factors, and falls caused by severe spasms. The disease is considered rare, affecting approximately one in a million people. Dion's diagnosis led to the rescheduling and cancellation of her 2023 tour.