25 Unusual Facts About Human Body (3 of 5)

11. Our feet have half a million sweat glands that produce about a pint of fluid everyday. Even if you’re not walking much that’s a lot of sweat!

12. Our lungs contain 300 million capillaries. To put that into perspective, if we stretched them out from one end to the other, we could easily connect one coast of the United States with the other.

13. If we laid out all of our blood vessels from one end to another, they would stretch roughly 60,000 miles. To put that into perspective, we could wrap that around the entire world almost two and a half times.

14. Hair is also really tough to destroy. Aside from setting it on fire (hair is actually quite flammable), destroying it other ways is incredibly difficult, even when using strong acids.

15. While our body insides may appear fragile, there’s a lot of survivability in them. It’s actually possible for us to live even if we don’t have a spleen, 75 percent of our liver, our stomach, 80 percent of our intestines, one of our kidneys or one of our lungs, as well as pretty much every other organ that rests in the pelvic and groin area.