I've selected 15 of 50 interesting facts I found, maybe you can learn something new here:

1. If you are right handed, you will tend to chew your food on your right side. If you are left handed, you will tend to chew your food on your left side.

2. If you stop getting thirsty, you need to drink more water. For when a human body is dehydrated, its thirst mechanism shuts off.

3. Chewing gum while peeling onions will keep you from crying.

4. Your tongue is germ free only if it is pink. If it is white there is a thin film of bacteria on it.

5. The roar that we hear when we place a seashell next to our ear is not the ocean, but rather the sound of blood surging through the veins in the ear.

6. The owl is the only bird to drop its upper eyelid to wink. All other birds raise their lower eyelids.

7. The color blue has a calming effect. It causes the brain to release calming hormones.

8. The verb “cleave” is the only English word with two synonyms which are antonyms of each other: adhere and separate.

9. It cost 7 million dollars to build the Titanic and 200 million to make a film about it.

10. The sound you hear when you crack your knuckles is actually the sound of nitrogen gas bubbles bursting.

11. It takes about 20 seconds for a red blood cell to circle the whole body.

12. Most soccer players run 7 miles in a game.

13. The only part of the body that has no blood supply is the cornea in the eye. It takes in oxygen directly from the air.

14. Colgate faced big obstacle marketing toothpaste in Spanish speaking countries. Colgate translates into the command “go hang yourself.”

15. Large kangaroos cover more than 30 feet with each jump.