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There are 60,000 miles of blood vessels in every adult human.
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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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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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The average office desk has 400 times more bacteria on it than a toilet.
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Thyroid conditions cause a higher risk of fibromyalgia and chronic fatigue syndrome.