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Asthma cases in Americans are about 75% higher today than they were in 1980.
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Acute bronchitis is an inflammation of the breathing tubes (bronchi), which causes increased mucus production and other changes. It is usually caused by bacteria or viruses, can be serious in people who have pulmonary or cardiac diseases, and can lead to pneumonia.
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Blood in the urine can be a sign of a kidney stone, glomerulonephritis, or other kidney problems.
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About 100 new prescription or over-the-counter drugs come into the U.S. market every year.
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According to the Migraine Research Foundation, migraines are the third most prevalent illness in the world. Women are most affected (18%), followed by children of both sexes (10%), and men (6%).