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Approximately 500,000 babies are born each year in the United States to teenage mothers.

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Thyroid conditions cause a higher risk of fibromyalgia and chronic fatigue syndrome.

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There are more sensory neurons in the tongue than in any other part of the body.

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The Romans did not use numerals to indicate fractions but instead used words to indicate parts of a whole.

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Blood in the urine can be a sign of a kidney stone, glomerulonephritis, or other kidney problems.

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