1. On average, a person spends about five years of their life eating.

2. On average, single men are one inch shorter than the average married men.

3. During menstruation, the sensitivity of a woman's middle finger decreases.

4. When your face turns red, the stomach wall will also turn red.

5. In your lifetime, you will produce enough saliva to fill two swimming pools.

6. In a lifetime, the average person will grow 590 miles of hair.

7. When the human body needs to move but cannot walk, a spontaneous reaction such as leg shaking occurs.

8. I have no sense of smell when I sleep!

9. On average, a woman will become pregnant 3.3 times in her lifetime.

10. Identical twins do not have the same fingerprints.

11. If your stomach doesn't produce a new layer of mucus every two weeks, it will be digested.

12. Nearly 80% of all sudden cardiac arrests occur at home.

13. By the age of 60, most people have lost 50% of their taste buds.

14. The average human body contains 0.1 milligrams of uranium, 0.2 milligrams of gold, and 7 milligrams of arsenic!

15. Starting from the age of thirty, the human body gradually begins to shrink.

16. The strongest human bite force ever recorded: 350 pounds. The strongest shark bite force ever recorded: 132 pounds!

17. A 2009 study found that the closer a woman lives to the equator, the more likely she is to give birth to a girl.

18. Pain travels at a speed of 350 feet per second in the body.

19. The aorta is the largest artery in the human body, almost equal to the diameter of a 3F garden hose.

20. Food at temperatures above 65°C can cause burns. It takes about 9 seconds for food to travel from the mouth to the esophagus and then into the stomach.

21. The Netherlands is the land of giants, the country with the tallest average height in the world: 1.88 meters for men and 1.72 meters for women! The Pan American Health Organization has listed the Dutch as the 'tallest people on Earth'.