Multiple sclerosis, or MS, is a disease that alters the functioning of your nervous system. It damages the protective layer that surrounds your body's nerves called the myelin sheath. After the myelin sheath is damaged, it's harder for the nerves to transmit signals throughout the body. That's why there are so many symptoms associated with MS. An impulse traveling on a nerve could be altered anyplace in your body where that nerve is exposed, causing you body to do something different than originally intended.
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Multiple sclerosis (MS) can affect the body in many ways. The disease causes damage to the lining of nerve cells in the brain and spinal cord in such a way that they cannot send signals properly. This can ultimately cause fatigue, weakness, numbness and tingling, as well as problems with walking, vision, sex, control of bowels or bladder and even with thinking and emotional stability.