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Approximately 500,000 babies are born each year in the United States to teenage mothers.
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There are more bacteria in your mouth than there are people in the world.
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Many of the drugs used by neuroscientists are derived from toxic plants and venomous animals (such as snakes, spiders, snails, and puffer fish).
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According to the National Institute of Environmental Health Sciences, lung disease is the third leading killer in the United States, responsible for one in seven deaths. It is the leading cause of death among infants under the age of one year.
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More than 2,500 barbiturates have been synthesized. At the height of their popularity, about 50 were marketed for human use.