Laid end to end, an adult's blood vessels could circle Earth's equator four times, with scientists estimating anywhere between 60,000-100,000 miles of blood vessels in the human body. Your heart ...
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25 Body Features Not Everyone Has
WATCH OUR OTHER VIDEOS: 25 Body Facts and Tricks You Can Actually Use Today: 25 Weird Facts About The Human Body: Everyone is different, but some people are more different than others. Im talking ...
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