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The ratio of hydrogen atoms to oxygen in water (H2O) is 2:1.
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There are more sensory neurons in the tongue than in any other part of the body.
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In the United States, an estimated 50 million unnecessary antibiotics are prescribed for viral respiratory infections.
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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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In the ancient and medieval periods, dysentery killed about ? of all babies before they reach 12 months of age. The disease was transferred through contaminated drinking water, because there was no way to adequately dispose of sewage, which contaminated the water.