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The human body produces and destroys 15 million blood cells every second.
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The ratio of hydrogen atoms to oxygen in water (H2O) is 2:1.
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Signs and symptoms of a drug overdose include losing consciousness, fever or sweating, breathing problems, abnormal pulse, and changes in skin color.
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There are approximately 3 million unintended pregnancies in the United States each year.
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Russia has the highest death rate from cardiovascular disease followed by the Ukraine, Romania, Hungary, and Poland.