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Did you know?
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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The word drug comes from the Dutch word droog (meaning "dry"). For centuries, most drugs came from dried plants, hence the name.
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Human kidneys will clean about 1 million gallons of blood in an average lifetime.
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Approximately 500,000 babies are born each year in the United States to teenage mothers.
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This year, an estimated 1.4 million Americans will have a new or recurrent heart attack.