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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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More than 150,000 Americans killed by cardiovascular disease are younger than the age of 65 years.
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Approximately 25% of all reported medication errors result from some kind of name confusion.
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Most childhood vaccines are 90–99% effective in preventing disease. Side effects are rarely serious.
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The familiar sounds of your heart are made by the heart's valves as they open and close.