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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.
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There are 60,000 miles of blood vessels in every adult human.
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The tallest man ever known was Robert Wadlow, an American, who reached the height of 8 feet 11 inches. He died at age 26 years from an infection caused by the immense weight of his body (491 pounds) and the stress on his leg bones and muscles.
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In 1844, Charles Goodyear obtained the first patent for a rubber condom.
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On average, someone in the United States has a stroke about every 40 seconds. This is about 795,000 people per year.