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Drying your hands with a paper towel will reduce the bacterial count on your hands by 45–60%.
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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 approximately 3 million unintended pregnancies in the United States each year.
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Signs and symptoms of a drug overdose include losing consciousness, fever or sweating, breathing problems, abnormal pulse, and changes in skin color.
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The modern decimal position system was the invention of the Hindus (around 800 AD), involving the placing of numerals to indicate their value (units, tens, hundreds, and so on).