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When blood is exposed to air, it clots. Heparin allows the blood to come in direct contact with air without clotting.
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The calories found in one piece of cherry cheesecake could light a 60-watt light bulb for 1.5 hours.
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There are approximately 3 million unintended pregnancies in the United States each year.
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According to research, pregnant women tend to eat more if carrying a baby boy. Male fetuses may secrete a chemical that stimulates their mothers to step up her energy intake.
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Cocaine was isolated in 1860 and first used as a local anesthetic in 1884. Its first clinical use was by Sigmund Freud to wean a patient from morphine addiction. The fictional character Sherlock Holmes was supposed to be addicted to cocaine by injection.