1. The amount of heat emitted per day from the body of the average person is enough to make 40 liters of water boil!

2. The left lung can hold less air than the right one because the heart is directly under the left lung!

3. Medical studies prove that each cigarette smoked cuts about 10 minutes from the supposed lifetime!

4. An adult’s beard contains between 7 to 15 thousand hairs while one eyebrow contains between 450 to 600 thousand hairs!

5. The size of the human embrio at the end of its third week no more than the size of sesame seed, and it’s weight is not more than the weight of a drop of water!

6. When someone is sleeping, he grows taller by approximately 1 centimeter because the body is relaxed, then when he wakes up he returns to his original height, unless of course he is meant to grow!

7. When you sneeze, all the organs in your body stop functioning, including your heart!

8. The human brain consumes 20 percent of the total oxygen absorbed by the body!

9. The gastrointestinal tract that begins from the mouth and ends with the anus is about 9 metres long!

10. If the human body loses 20% of it’s water then it dies for sure!

11. The body of a human adult contains about 100,000,000,000,000 (100 trillion) cells!!

12. Bone marrow is the fastest growing human tissue, followed by the hair!

13.  Fingerprints of the fetus begins to emerge after about 15 weeks at the beginning of pregnancy!

14. The human body contains about 600 muscles and the muscles makes up 40% of the total weight of the body!

15. The liver is the only body organ that is capable of regrowing after being cut surgically!

16. The human body is born without the kneecaps and they only begin to show between the age of 2-6 years old.

17. If you put the headphones in the ear for a period of one hour, it will lead to a multiplication of the bacteria inside your ears at a rate of 700 times!

18. Domestic house flies cause the transfer of about 30 different infectious disease to humans!

19. The smallest bone in the human body is the <> located in the ear!

20. Blood goes a distance of up to 9 thousand kilometers a day through the blood vessels!

21. Blue eyes are most sensitive to light, and black eyes are least affected by light!

Thank you for reading these interesting facts and if you liked them, please click on that “I Like It” button. Good luck!