Harvard Health Blog

For people with MS, can exercise change the brain?

By: Robert H. Shmerling, MD, Faculty Editor, Harvard Health Publications Multiple sclerosis (MS) is a condition of unknown cause in which the covering lining of nerve fibers (called myelin) is damaged. Myelin is like insulation on a wire when it is damaged, nerve impulses are not transmitted properly. This leads to an array of symptoms including weakness, vision problems, numbness, tingling, and poor coordination or imbalance that can be debilitating. …

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