Stiff Person Syndrome (SPS) is a rare neurological disorder that affects about one or two people per million. It causes muscle stiffness, spasms, and pain, often interfering with daily activities and quality of life. Recently, the condition has gained more attention after singer Celine Dion revealed her diagnosis and postponed her tour dates. Elmhurst woman sheds light on experience with Stiff Person Syndrome as Celine Dion's battle raises awareness https://t.co/o9xpv3dY4E ...