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Earwax has antimicrobial properties that reduce the viability of bacteria and fungus in the human ear.
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Approximately 15–25% of recognized pregnancies end in miscarriage. However, many miscarriages often occur before a woman even knows she is pregnant.
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Cytomegalovirus affects nearly the same amount of newborns every year as Down syndrome.
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When blood is exposed to air, it clots. Heparin allows the blood to come in direct contact with air without clotting.
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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.