Multiple sclerosis (MS) is a condition that affects your brain and spinal cord. It damages the myelin sheath, the tissue that surrounds and protects your nerve cells. This damage blocks or slows down ...

What Is Late-Onset Multiple Sclerosis? When you have multiple sclerosis (MS), your immune system attacks nerve cells and fibers called axons in your brain. When this happens, your brain can’t send ...

Multiple sclerosis is an autoimmune disease in which immune cells attack and destroy the protective myelin sheaths that surround nerve fibres, leading to neurological disturbances. After spinal cord ...