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Thyroid conditions may make getting pregnant impossible.
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Russia has the highest death rate from cardiovascular disease followed by the Ukraine, Romania, Hungary, and Poland.
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The average human gut is home to perhaps 500 to 1,000 different species of bacteria.
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There are approximately 3 million unintended pregnancies in the United States each year.
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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.