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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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Thyroid conditions cause a higher risk of fibromyalgia and chronic fatigue syndrome.
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This year, an estimated 1.4 million Americans will have a new or recurrent heart attack.
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On average, the stomach produces 2 L of hydrochloric acid per day.
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Malaria was not eliminated in the United States until 1951. The term eliminated means that no new cases arise in a country for 3 years.