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Did you know?
Approximately 500,000 babies are born each year in the United States to teenage mothers.
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Cancer has been around as long as humankind, but only in the second half of the twentieth century did the number of cancer cases explode.
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There are more sensory neurons in the tongue than in any other part of the body.
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Blood is approximately twice as thick as water because of the cells and other components found in it.
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If all the neurons in the human body were lined up, they would stretch more than 600 miles.