Multiple sclerosis is a disease of the central nervous system in which the myelin sheath (the cells that line and protect the nerves) are attacked and scarred by the body’s own immune system. This scarring causes a decreased ability for those nerves to transmit signals of muscle control or sensation.
It is rare in children, usually showing first symptoms between the ages of 20 and 50. Early symptoms may include blurred vision, weakness in the arms and legs, and balance or coordination problems.
There are presently no cures, but there are several medications to reduce or delay symptoms.