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In 1844, Charles Goodyear obtained the first patent for a rubber condom.
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During pregnancy, a woman is more likely to experience bleeding gums and nosebleeds caused by hormonal changes that increase blood flow to the mouth and nose.
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There are more sensory neurons in the tongue than in any other part of the body.
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Earwax has antimicrobial properties that reduce the viability of bacteria and fungus in the human ear.
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Drugs are in development that may cure asthma and hay fever once and for all. They target leukotrienes, which are known to cause tightening of the air passages in the lungs and increase mucus productions in nasal passages.