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In 1844, Charles Goodyear obtained the first patent for a rubber condom.
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In most climates, 8 to 10 glasses of water per day is recommended for adults. The best indicator for adequate fluid intake is frequent, clear urination.
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Methicillin-resistant Staphylococcus aureus or MRSA was discovered in 1961 in the United Kingdom. It if often referred to as a superbug. MRSA infections cause more deaths in the United States every year than AIDS.
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Asthma cases in Americans are about 75% higher today than they were in 1980.
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The heart is located in the center of the chest, with part of it tipped slightly so that it taps against the left side of the chest.