How Much Do You Know About Multiple Sclerosis?
Multiple sclerosis (MS) is a disease of the central nervous system, the brain, and spinal cord. Its symptoms can range from mild to severe. Find out more about this illness by taking this quiz, based on information from the National Institute of Neurological Disorders and Stroke (NINDS).
1. About how many people in the U.S. have MS?
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In 2010, most experts estimated that 300,000 to 400,000 Americans had MS. By 2017, that number had more than doubled, to more 900,000.
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