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Did you know?

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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There are approximately 3 million unintended pregnancies in the United States each year.

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During pregnancy, a woman is more likely to experience bleeding gums and nosebleeds caused by hormonal changes that increase blood flow to the mouth and nose.

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In the ancient and medieval periods, dysentery killed about ? of all babies before they reach 12 months of age. The disease was transferred through contaminated drinking water, because there was no way to adequately dispose of sewage, which contaminated the water.

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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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Video: Bulk flow - factors that influence bulk flow

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