Learn more about MS – the autoimmune disease that affects the central nervous system
Multiple sclerosis (MS) is an autoimmune disease affecting the brain, spinal cord, and optic nerves. It occurs when the body’s defense system attacks the central nervous system, damaging the protective insulation, known as the myelin, that surrounds the nerve fibers. Any time part of the myelin sheath or nerve fiber is damaged, nerve impulses traveling between the body and brain are interrupted, causing various symptoms associated with MS.
Nearly one million people in the United States have MS, making it one of the most common neurological diseases. MS can appear at any age but most commonly manifests between the ages of 20 and 50 and affects women three times as often as men.