Multiple sclerosis (MS) is an autoimmune disease that affects the central nervous system (brain, optic nerves and spinal cord). It destroys myelin, a protective layer around the nerve fibres. When this sheath is damaged, the nerve impulses transmitted from the brain to the muscles ** longer travel properly. The transmission of nerve impulses is therefore slowed or simply blocked, depending on the lesions in the myelin. In both cases, it can cause significant health problems. What exactly are the symptoms of MS? Is there a cure? Read on to find out!