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In 1844, Charles Goodyear obtained the first patent for a rubber condom.
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The largest baby ever born weighed more than 23 pounds but died just 11 hours after his birth in 1879. The largest surviving baby was born in October 2009 in Sumatra, Indonesia, and weighed an astounding 19.2 pounds at birth.
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The familiar sounds of your heart are made by the heart's valves as they open and close.
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The longest a person has survived after a heart transplant is 24 years.
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Essential fatty acids have been shown to be effective against ulcers, asthma, dental cavities, and skin disorders such as acne.