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People about to have surgery must tell their health care providers about all supplements they take.

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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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Asthma cases in Americans are about 75% higher today than they were in 1980.

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Cytomegalovirus affects nearly the same amount of newborns every year as Down syndrome.

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If you could remove all of your skin, it would weigh up to 5 pounds.

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