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Multiple sclerosis is a condition wherein the body's nervous system is weakened by an autoimmune reaction that attacks the myelin sheaths of neurons.
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The Centers for Disease Control and Prevention (CDC) was originally known as the Communicable Disease Center, which was formed to fight malaria. It was originally headquartered in Atlanta, Georgia, since the Southern states faced the worst threat from malaria.
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People about to have surgery must tell their health care providers about all supplements they take.
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There are 60,000 miles of blood vessels in every adult human.
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There are more nerve cells in one human brain than there are stars in the Milky Way.