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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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The first documented use of surgical anesthesia in the United States was in Connecticut in 1844.
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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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After a vasectomy, it takes about 12 ejaculations to clear out sperm that were already beyond the blocked area.
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Cancer has been around as long as humankind, but only in the second half of the twentieth century did the number of cancer cases explode.