Canadian superstar Céline Dion’s foundation is donating $2 million to the University of Colorado’s Anschutz Medical Campus to advance research into stiff person syndrome and other rare neurological autoimmune diseases, university officials announced Tuesday. Dion announced her diagnosis of stiff person syndrome, a rare disease that causes muscle stiffness, spasms and difficulty walking, in December 2022 after she had to cancel her Courage world tour. CU Anschutz Associate Professor Amanda Piquet and her team have since worked with Dion to overcome the disease, campus officials said Tuesday.