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Certain rare plants containing cyanide include apricot pits and a type of potato called cassava. Fortunately, only chronic or massive ingestion of any of these plants can lead to serious poisoning.

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Fewer than 10% of babies are born on their exact due dates, 50% are born within 1 week of the due date, and 90% are born within 2 weeks of the date.

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The Romans did not use numerals to indicate fractions but instead used words to indicate parts of a whole.

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Cancer has been around as long as humankind, but only in the second half of the twentieth century did the number of cancer cases explode.

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On average, someone in the United States has a stroke about every 40 seconds. This is about 795,000 people per year.

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