1. Every hour one billion cells in the body daam should be replaced.
2. The human eye can distinguish 500 shades of gray.
3. Human thigh bones are stronger than concrete.
4. The human heart is capable of creating enough pressure to squirt blood as far as 30 feet (9 m).
5. Our eyes are always the same size from birth, but our nose and ears never stop growing.
6. Cough average out of our mouths speed of 60 miles (96.5 km) per hour.
7. beard hair growth is most rapid in humans. If the average man never cut his beard, eating it will make it grow to nearly 30 feet in life.
8. The baby's eyes do not produce tears until the baby was about six or eight weeks.
9. Every person has a different tongue.
10. A sneeze can exceed the speed of 100 m / h.
11. The dead cells in our body eventually carried to the kidneys for excretion.
12. A smile is a facial expression most frequently used. A smile can do anywhere from 5 to 53 pairs of facial muscles.
13. One in 20 people has a rib more.
14. People with dark skin will not shrink as fast as those with lighter skin.
15. Human blood through a journey of 60,000 (96 540 km) per day on a journey through the body.
16. 85% of the population can bend their tongue into a tube.
17. It takes seven seconds for food to go from the mouth to the stomach via the esophagus.
18. The heart beats faster women than men.
19. In one day, if our heart beats 100,000.
20. Hair is made of the same material as fingernails.