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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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If you could remove all of your skin, it would weigh up to 5 pounds.
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There are 20 feet of blood vessels in each square inch of human skin.
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Drying your hands with a paper towel will reduce the bacterial count on your hands by 45–60%.
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Though the United States has largely rejected the metric system, it is used for currency, as in 100 pennies = 1 dollar. Previously, the British currency system was used, with measurements such as 12 pence to the shilling, and 20 shillings to the pound.