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Did you know?
There are 60,000 miles of blood vessels in every adult human.
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After a vasectomy, it takes about 12 ejaculations to clear out sperm that were already beyond the blocked area.
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It is widely believed that giving a daily oral dose of aspirin to heart attack patients improves their chances of survival because the aspirin blocks the formation of new blood clots.
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The familiar sounds of your heart are made by the heart's valves as they open and close.
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Excessive alcohol use costs the country approximately $235 billion every year.