1, The new hair that grows every day adds up to 36 meters long.

2. Clowns and agoraphobia are two of the most common fears everyone has.

3, Up to 430 bugs are swallowed each year without realizing it.

4, The human body looks lighter when riding down in an elevator.

4, mosquitoes love the color blue (so don't buy blue clothes to wear, attract mosquitoes).

5, eye muscles move up to 100,000 times a day.

6, the squirrel used to find the pine cones buried, but it seems that its memory is not good, so often will be buried in the place to forget, so the forgotten pine cones slowly grew into a tree, that is to say, the squirrel inadvertently planted millions of trees, in addition, there is a kind of beavers called, each year, chewed off the trees nearly 200 trees.

7. Cat urine glows under ultraviolet light.

8, Because there's less gravity to work with, you get taller in space.

9, Strip off all the skin from your body and it would be nearly 2 square feet flat.

10, There is enough carbon in the human body to make 9,000 pencils.

11, people unknowingly swallow about a liter of snot every day.

12, The farts a person lets out every day are equivalent to the gas needed to fill a balloon (not including the radish he ate that day).

The above references? People's Daily News - 25 Cold Science Facts You Must Not Know