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Blood is approximately twice as thick as water because of the cells and other components found in it.
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More than 150,000 Americans killed by cardiovascular disease are younger than the age of 65 years.
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The modern decimal position system was the invention of the Hindus (around 800 AD), involving the placing of numerals to indicate their value (units, tens, hundreds, and so on).
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This year, an estimated 1.4 million Americans will have a new or recurrent heart attack.
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Increased intake of vitamin D has been shown to reduce fractures up to 25% in older people.