“Céline Dion has been out of the public eye for three-and-a-half years, but to the delight of fans, she made a rare public appearance at an NHL game Monday evening.
“Dion, 55, revealed last year that she has been diagnosed with a rare neurological disease known as Stiff-Person Syndrome, which causes muscle spasms that can be debilitating and even violent.
“The spasms can be strong enough to break bones, according to the Stiff Person Syndrome Foundation.”
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