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Did you know?
This year, an estimated 1.4 million Americans will have a new or recurrent heart attack.
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The heart is located in the center of the chest, with part of it tipped slightly so that it taps against the left side of the chest.
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During the twentieth century, a variant of the metric system was used in Russia and France in which the base unit of mass was the tonne. Instead of kilograms, this system used millitonnes (mt).
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About 3% of all pregnant women will give birth to twins, which is an increase in rate of nearly 60% since the early 1980s.
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Excessive alcohol use costs the country approximately $235 billion every year.