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Multiple sclerosis (MS) is a life-long chronic disease diagnosed primarily in young adults. During an MS attack, inflammation occurs in areas of the white matter of the central nervous system (nerve fibers that are the site of MS lesions) in random patches called plaques. This process is followed by destruction of myelin, which insulates nerve cell fibers in the brain and spinal cord. Myelin facilitates the smooth, high-speed transmission of electrochemical messages between the brain, the spinal cord, and the rest of the body. The initial symptom of MS is often blurred or double vision, red-green color distortion, or even blindness in one eye. Most MS patients experience muscle weakness in their extremities and difficulty with coordination and balance. Most people with MS also exhibit paresthesias, transitory abnormal sensory feeling such as numbness or 'pins and needles'. Some may experience pain or loss of feeling. About half of people with MS experience cognitive impairments such as difficulties with concentration, attention, memory, and judgment. Presents leading research from around the globe.
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