Actor Christina Applegate has revealed that she has multiple sclerosis. The 49-year-old Emmy winner, who currently stars in the Netflix series “Dead To Me,” has been making audiences laugh for years. One of her most iconic roles was as Veronica Corning in “Anchorman,” alongside Will Ferrell. Multiple sclerosis, sometimes abbreviated as MS, is a neurological disease attacking the central nervous system and how it communicates with the brain. Applegate is also a breast cancer survivor.