This is from the Johns Hopkins Website:
As Heather says, it's impossible to include all information on MS, but this is a credible definition of MS. This def. does not include all all forms or symptoms here, as it says, it varies different from person to person. For more information, there are a lot of websites on the net. This one in particular is:
http://www.hopkinsneuro.org/disease.cfm/condition/Multiple_Sclerosis
Multiple sclerosis (MS) is a chronic disease affecting the central nervous system (the brain and spinal cord). MS occurs when the immune system attacks nerve fibers and myelin sheathing in the brain and spinal cord. Myelin sheathing is a fatty substance that surrounds and insulates healthy nerve fibers to help transmit electrical messages along the nerves to various parts of the body. The abnormal immune attack causes inflammation which destroys nerve cell processes and myelin and interrupts these electrical messages. Because the messages don’t get through efficiently, both conscious and unconscious functions of the body can be impacted. The disease received its name because it causes many areas of the brain and spinal cord to become hardened (sclerosed) as scar tissues forms over damaged myelin. The course of the disease is unpredictable and varies from person to person.
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No sure what has brought upon asking, but I hope this helps.
Be well,
SL
Perhaps you could log onto the National MS Society website and get the information that is totally complete and accurate, that may be impossible to do in this small space.
Best Wishes,
Heather