Christina Applegate. Selma Blair. Jack Osbourne. In addition to their fame, these celebrities all share something else in common: They've been diagnosed with multiple sclerosis.
MS impacts the brain, spinal cord, and optic nerves, which together make up the central nervous system and controls everything we do, according to The National MS Society. One of the most challenging things about the disease is that it looks very different in each patient. Symptoms can range from numbness and tingling to mood changes, and even blindness, the society reports.
In fact, while more than 2.1 million people struggle with MS, a diagnosis can still take years, or in some cases, even decades, to pin down—something many celebrities with MS have spoken candidly about over the years. And, there is still no “cure” or universal treatment plan for the disease.