Harvard Health Blog
Multiple sclerosis (MS) is a condition that causes damage to the substance that covers nerve cells. This interrupts normal communication between nerves, leading to problems with movement, speech, and other functions. We don't know what causes MS but we think it is an autoimmune disease.
What is an autoimmune disease?
Autoimmune diseases develop when a person's immune system goes after its own tissues and organs. Autoimmune disease can affect all parts of the body. For example:
--Type 1 diabetes. This is the type that usually affects kids and develops when abnormal antibodies attack certain cells in the pancreas, leaving it unable...