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Drugs are in development that may cure asthma and hay fever once and for all. They target leukotrienes, which are known to cause tightening of the air passages in the lungs and increase mucus productions in nasal passages.
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About one in five American adults and teenagers have had a genital herpes infection—and most of them don't know it. People with genital herpes have at least twice the risk of becoming infected with HIV if exposed to it than those people who do not have genital herpes.
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On average, the stomach produces 2 L of hydrochloric acid per day.
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There are 20 feet of blood vessels in each square inch of human skin.
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Eat fiber! A diet high in fiber can help lower cholesterol levels by as much as 10%.