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Did you know?

The horizontal fraction bar was introduced by the Arabs.

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In the United States, there is a birth every 8 seconds, according to the U.S. Census Bureau's Population Clock.

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Medications that are definitely not safe to take when breastfeeding include radioactive drugs, antimetabolites, some cancer (chemotherapy) agents, bromocriptine, ergotamine, methotrexate, and cyclosporine.

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

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