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In the United States, there is a birth every 8 seconds, according to the U.S. Census Bureau's Population Clock.

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The B-complex vitamins and vitamin C are not stored in the body and must be replaced each day.

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Aspirin is the most widely used drug in the world. It has even been recognized as such by the Guinness Book of World Records.

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Oliver Wendell Holmes is credited with introducing the words "anesthesia" and "anesthetic" into the English language in 1846.

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Although the Roman numeral for the number 4 has always been taught to have been "IV," according to historians, the ancient Romans probably used "IIII" most of the time. This is partially backed up by the fact that early grandfather clocks displayed IIII for the number 4 instead of IV. Early clockmakers apparently thought that the IIII balanced out the VIII (used for the number 8) on the clock face and that it just looked better.

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