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Did you know?
In 1844, Charles Goodyear obtained the first patent for a rubber condom.
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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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Vaccines prevent between 2.5 and 4 million deaths every year.
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The immune system needs 9.5 hours of sleep in total darkness to recharge completely.
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Computer programs are available that crosscheck a new drug's possible trade name with all other trade names currently available. These programs detect dangerous similarities between names and alert the manufacturer of the drug.