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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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On average, someone in the United States has a stroke about every 40 seconds. This is about 795,000 people per year.
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In most cases, kidneys can recover from almost complete loss of function, such as in acute kidney (renal) failure.
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Asthma cases in Americans are about 75% higher today than they were in 1980.
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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.