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Multiple Sclerosis

The central nervous system comprises nerve cells, or neurons, in the brain and spinal cord. A fatty product called myelin surrounds most nerves in the body. Myelin allows the nerves to send clear elec...
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Many Teens 'Vaping' for Flavor, Not Nicotine

Study found that only about a fifth of 12th graders who used an e-cigarette used a nicotine substance

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