Best Facts

1. Amount of salt in tears increases with age. The elderly have up to three times saltier than newborns.
2. Human brain undergoes 100,000 chemical  reactions per second.
3. Women blink twice as often per men.
4. When brain feels an emotion, the exertion causes it to sweat.The sweat then leaks out of eyes as tears.
5. The human brain stops growing at the age of 18.
6. Tongue prints like thumb prints are all unique.
7. The sailfish can swim up to 68 MPH. It's the world's fastest swimmer.
8. Human bone is about 4 times stronger than concrete.
9. If human remove his stomach,spleen,one kidney,30% of intestine and 75% of liver.He can still survive.
10. The Spanish national anthem has no words.
11. Honey does not spoil. You could feasibly eat 3000 years old honey.
12. It would take 1,200,000 mosquitoes , each sucking once completely drain the average human of blood.
13. A crocodile can't stick its tongue out.
14. More than 50% of the people have never made or received a telephone call.
15. Wearing head phones for just an hour will increase the bacteria in your ear by 700 times.
16. The cigarette lighter was invented before the matchstick.
17. Like fingerprints, every one's tongue print is also different.
18. A crocodile can't move it;s tongue and can't chew.It's digestive juices are so strong that it can digest an iron nail.
19. The female lion does ninety percent of the hunting. 
20. Hot air is lighter than cold air but hot water is heavier than cold water.
21. Young starfish eats food two times their weight every day.
22. In Florida , it is illegal for a housewife to break three dishes a day.