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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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Urine turns bright yellow if larger than normal amounts of certain substances are consumed; one of these substances is asparagus.
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This year, an estimated 1.4 million Americans will have a new or recurrent heart attack.
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Approximately 500,000 babies are born each year in the United States to teenage mothers.
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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.