I read that an adult human body has 60,000 miles of blood vessels inside their body. How is that even possible?

Question

I cant make sense of it in my head.

In: 4

Answer 1

Really tiny things can be stretched out for incredibly long distances if arranged end-to-end on a single axis. But live in a 3 dimensional world and those things occupy far less space when arranged in their natural state filling a volume.

It’s just geometry. There’s nothing particularly special about blood vessels or the human body, you can do it with just about any matter. Theoretically you could tear strips off a piece of A4 paper and make it many thousands of miles long too, as long as those strips were thin enough.