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The human body produces and destroys 15 million blood cells every second.
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Pregnant women usually experience a heightened sense of smell beginning late in the first trimester. Some experts call this the body's way of protecting a pregnant woman from foods that are unsafe for the fetus.
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Multiple experimental evidences have confirmed that at the molecular level, cancer is caused by lesions in cellular DNA.
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Cytomegalovirus affects nearly the same amount of newborns every year as Down syndrome.
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In 1844, Charles Goodyear obtained the first patent for a rubber condom.