Here are some interesting facts about the human body

1. Did you know that the length from your wrist to your elbow is about the same length as your foot? Well let’s put that to the test. About 10.5 inches, and about 10.5 inches. So let’s fee if it works. Yep, its about right.
2. The outside of your eye is called the cornea. Now the cornea cells are the only cells in the body that don’t need to get their oxygen through the blood. They can actually get the oxygen that they need from the air. So that’s why when you use contacts too frequently or sleep in them, its bad for your eyes because they’re not getting the oxygen that they need.
3. Well all know what this is right? Well if you saw somebody trying to use this on their hair, you might think they’re a little weird huh? Well they might not be as weird as you may think. Why? Because your hair is made out of the same material as your fingernails.
4. Did you know that it takes 72 muscles to produce human speech?
5. You may have noticed that you have to cut your fingernails more often that your toenails. Well that’s because the longer the finger, the faster it grows. So the middle finger is going to grow the fastest and the slowest. Your toes are about 1/3 of the size of your fingers, so that means that you have to cut your fingernails 3 times as often as your toenails.
6. The muscle that controls your eyelid is the fastest muscle in your entire body. It allows you to blink about 5 times a second, and about 15,000 times a day. And another thing is that women blink about twice as many times as men.
7. Well you probably already know that a yard is 3 feet, but who came up with a yard? Well that was King Henry. In the 12^th century, he came up with the standardized length of a yard. It was the distance from his nose, to his thumb.
8. When you see pictures of bones in magazines, or when you see them at a museum, they tend to be white. So you might think that the bones in a human body are white, but that’s not true. The living bones in the human body range form colors of beige to a light brown. The reason why they’re white in museums and in pictures is because they take the bones and they boil them and they clean them, so it bleaches them white.