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Did you know?

The average adult has about 21 square feet of skin.

Did you know?

This year, an estimated 1.4 million Americans will have a new or recurrent heart attack.

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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.

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Sperm cells are so tiny that 400 to 500 million (400,000,000–500,000,000) of them fit onto 1 tsp.

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Never take aspirin without food because it is likely to irritate your stomach. Never give aspirin to children under age 12. Overdoses of aspirin have the potential to cause deafness.

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Video: How a Urinalysis is Performed

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