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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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There are more nerve cells in one human brain than there are stars in the Milky Way.
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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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Asthma is the most common chronic childhood disease in the world. Most children who develop asthma have symptoms before they are 5 years old.
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The first oncogene was discovered in 1970 and was termed SRC (pronounced "SARK").