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Did you know?
There are more bacteria in your mouth than there are people in the world.
Did you know?
In 1885, the Lloyd Manufacturing Company of Albany, New York, promoted and sold "Cocaine Toothache Drops" at 15 cents per bottle! In 1914, the Harrison Narcotic Act brought the sale and distribution of this drug under federal control.
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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).
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More than 150,000 Americans killed by cardiovascular disease are younger than the age of 65 years.
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The familiar sounds of your heart are made by the heart's valves as they open and close.