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Did you know?
The average adult has about 21 square feet of skin.
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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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No drugs are available to relieve parathyroid disease. Parathyroid disease is caused by a parathyroid tumor, and it needs to be removed by surgery.
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In the United States, an estimated 50 million unnecessary antibiotics are prescribed for viral respiratory infections.
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The immune system needs 9.5 hours of sleep in total darkness to recharge completely.