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In 1844, Charles Goodyear obtained the first patent for a rubber condom.
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Liver spots have nothing whatsoever to do with the liver. They are a type of freckles commonly seen in older adults who have been out in the sun without sufficient sunscreen.
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This year, an estimated 1.4 million Americans will have a new or recurrent heart attack.
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According to the National Institute of Environmental Health Sciences, lung disease is the third leading killer in the United States, responsible for one in seven deaths. It is the leading cause of death among infants under the age of one year.
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Nearly 31 million adults in America have a total cholesterol level that is more than 240 mg per dL.