Multiple Sclerosis: What is it? Following her departure from “Dancing with the Stars,” Selma Blair spoke up about the illness.

‘Dancing with the Stars’ participant Selma Blair announced that she was quitting due to problems from multiple sclerosis. Nearly 1 million adults in the US are affected by the illness, often known as MS, which has the potential to be incapacitating.

According to the Cleveland Clinic, a nonprofit academic medical facility, the majority of patients with MS are diagnosed between the ages of 20 and 40, and women are more likely than males to be diagnosed with the condition.