What are amazing facts of life that some of us know

These are 10 interesting facts about the human body.

1. It is very much surprising to note that the distance that a spermatozoon travels between the entrance of the vaginal canal and the fallopian tubes is proportional to the distance of 434 kilometres for an adult human.

2. There are a few people who know that their brain is sometimes more active when they are sleeping than when they are awake.

3. More or less the average person has 67 different species of bacteria in their belly button.

4. Every human being loses about 4kg of skin cells every year.

5. Almost every baby does not shed tears when he cries until he or she is at least one month old.

6. The human brain gets triples in size in the first year of a baby's life. 

7. Every second, our body produces 25 million new cells. This means that, in 10 seconds, we will have produced more cells than the number of inhabitants in Brazil.

8. Our blood makes up about 8% of our body weight. Surprising?

9. Everybody's left lung is about 10% smaller than his right.

10. Scientists have estimated that the nose can recognize a trillion different odours!

How long can a human being survive without food? - Can you answer?

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