Multiple Sclerosis (MS)
Multiple sclerosis (MS) is an autoimmune disease that affects the brain and spinal cord (central nervous system). In many cases, MS can cause permanent disability and even death.
It is unknown what exactly causes MS. The most common thought is that a virus or gene defect- or both- are to blame. Environmental factors may also play a role.
Multiple sclerosis (MS) affects women more than men. The disorder is most commonly diagnosed between ages 20 and 40, but it can be seen at any age. You are slightly more likely to develop this condition if you have a family history of MS or you live in a part of the world where MS is more common.
(Source: CDC)