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In 1844, Charles Goodyear obtained the first patent for a rubber condom.
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On average, the stomach produces 2 L of hydrochloric acid per day.
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The average human gut is home to perhaps 500 to 1,000 different species of bacteria.
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Certain chemicals, after ingestion, can be converted by the body into cyanide. Most of these chemicals have been removed from the market, but some old nail polish remover, solvents, and plastics manufacturing solutions can contain these substances.
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Asthma is the most common chronic childhood disease in the world. Most children who develop asthma have symptoms before they are 5 years old.