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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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In 1864, the first barbiturate (barbituric acid) was synthesized.
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The longest a person has survived after a heart transplant is 24 years.
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If all the neurons in the human body were lined up, they would stretch more than 600 miles.
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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.