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Asthma cases in Americans are about 75% higher today than they were in 1980.
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The B-complex vitamins and vitamin C are not stored in the body and must be replaced each day.
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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.
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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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The Babylonians wrote numbers in a system that used 60 as the base value rather than the number 10. They did not have a symbol for "zero."