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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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Everyone has one nostril that is larger than the other.
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Fewer than 10% of babies are born on their exact due dates, 50% are born within 1 week of the due date, and 90% are born within 2 weeks of the date.
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Earwax has antimicrobial properties that reduce the viability of bacteria and fungus in the human ear.
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Between 1999 and 2012, American adults with high total cholesterol decreased from 18.3% to 12.9%