Multiple sclerosis (MS) is a condition that affect the brain and spinal cord, inflicting a large range of potential symptoms, together with problems with vision, arm or leg movement, sensation or balance. It's a lifetime condition that may generally cause serious disability, though it will often be mild. In several cases, it's possible to treat symptoms. Average lifetime is slightly reduced for individuals with MS. It's most typically diagnosed in individuals in their 20s and 30s, though it will develop at any age. It's regarding two to three times more common in girls than men. MS is one of the foremost common causes of disability in younger adults.