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During pregnancy, a woman is more likely to experience bleeding gums and nosebleeds caused by hormonal changes that increase blood flow to the mouth and nose.
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Asthma cases in Americans are about 75% higher today than they were in 1980.
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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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Aspirin is the most widely used drug in the world. It has even been recognized as such by the Guinness Book of World Records.
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In the United States, an estimated 50 million unnecessary antibiotics are prescribed for viral respiratory infections.