Multiple Sclerosis (MS) is a neurological autoimmune disease. Tissues in the brain and in the spinal cord are attacked by the immune system. The nerve cells in the central nervous system are affected when the myelin, the protective coating that surrounds the nerve fiber, gets inflamed and gradually degraded, leading to a loss of nerve conductivity.
The symptoms vary a lot, and thus MS is often called ‘a disease with many faces’ but include fatigue, numbness and weakness in muscles, paralysis of arms, legs and the face. Even balance, coordination and speech may be affected.
MS is not considered a hereditary disease in the sense that a particular gene is involved, but hereditary factors may have an effect in combination with other, for example environmental factors. MS is more common in countries with a chilly climate.