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There are 60,000 miles of blood vessels in every adult human.
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Bacteria have been found alive in a lake buried one half mile under ice in Antarctica.
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Eating food that has been cooked with poppy seeds may cause you to fail a drug screening test, because the seeds contain enough opiate alkaloids to register as a positive.
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There are approximately 3 million unintended pregnancies in the United States each year.
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In 1886, William Bates reported on the discovery of a substance produced by the adrenal gland that turned out to be epinephrine (adrenaline). In 1904, this drug was first artificially synthesized by Friedrich Stolz.