ITK: FUN FACTS ABOUT LIFE (3)

1. Every time you sneeze some of your brain cells die.
2. Your left lung is smaller than your right lung to make room for your heart.
3. Men's shirts have the buttons on the right, but women's shirts have the buttons on the left.
4. The owl is the only bird to drop its upper eyelid to wink. All other birds raise their lower eyelids.
5. Roosters cannot crow if they cannot extend their necks.
6. When you blush, the lining of your stomach also turns red.
7. When Hippos are upset, their sweat turns red.
8. The sound you hear when you crack your knuckles is actually the sound of nitrogen gas bubbles bursting.
9. Human hair and fingernails continue to grow after death.
10. It takes about 20 seconds for a red blood cell to circle the whole body.