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The horizontal fraction bar was introduced by the Arabs.
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About one in five American adults and teenagers have had a genital herpes infection—and most of them don't know it. People with genital herpes have at least twice the risk of becoming infected with HIV if exposed to it than those people who do not have genital herpes.
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Nearly 31 million adults in America have a total cholesterol level that is more than 240 mg per dL.
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The average older adult in the United States takes five prescription drugs per day. Half of these drugs contain a sedative. Alcohol should therefore be avoided by most senior citizens because of the dangerous interactions between alcohol and sedatives.
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There are more bacteria in your mouth than there are people in the world.