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There are 60,000 miles of blood vessels in every adult human.
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IgA antibodies protect body surfaces exposed to outside foreign substances. IgG antibodies are found in all body fluids. IgM antibodies are the first type of antibody made in response to an infection. IgE antibody levels are often high in people with allergies. IgD antibodies are found in tissues lining the abdomen and chest.
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Everyone has one nostril that is larger than the other.
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In the United States, an estimated 50 million unnecessary antibiotics are prescribed for viral respiratory infections.
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Eating food that has been cooked with poppy seeds may cause you to fail a drug screening test, because the seeds contain enough opiate alkaloids to register as a positive.