Céline Dion lost control over her muscles amid stiff-person syndrome, her sister says

Céline Dion has reportedly lost control of some of her mobility amid her stiff-person syndrome diagnosis.

“She doesn’t have control over her muscles,” the “My Heart Will Go On” singer’s sister Claudette Dion told 7 Jours on Dec. 12, according to a translation from French. “What pains me is that she has always been disciplined. She always worked hard.”

Claudette Dion added that it is her dream and her sister’s to return to the stage one day. “In what capacity? I don’t know,” she said. “The vocal cords are muscles, and the heart is also a muscle. This is what gets me.”

USA TODAY has reached out to reps for Céline Dion.

The Grammy-winning singer said in December 2022 that she had been diagnosed with a neurological disorder called stiff person syndrome in an emotional Instagram video. The singer said the symptoms are what have been causing her to have severe muscle spasms in the past.

“The spasms affect every aspect of my daily life, sometimes causing difficulties when I walk and not allowing me to use my vocal cords to sing the way I’m used to,” Céline Dion said. “I have to admit it’s been a struggle. All I know is singing, it’s what I’ve done all my life.”