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If you were to take out all your blood vessels and place them end to end
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2019-09-17 at 10:54 AM UTCYou would die.
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2019-09-17 at 10:56 AM UTCIt is TRUE. If all arteries and veins of the human circulatory system were laid end to end, the total length would be 60,000 mi. (100,000 km). That's nearly two and a half times around the Earth.