There are many really interesting and incredible facts to choose from. However, regardless of how difficult the choice is, we decided to present 17 astonishing facts that will be a real food for thought.

Here is our list:

1. It is true that smoking has generally been considered number one killer. But believe it or not, it seems that this is not totally true since the same number of people have been killed by laziness and being physically inactive.

2. There have been many studies on the differences between right-handed and left-handed people. However, it is a fact that right-handed people chew their food on their right side whereas left-handed people chew their food on their left side.

3. Human brain is full of surprises. It can store 5 times as much information as Wikipedia. It also uses the same amount of power as 10-watt light bulb.

4. Sitting is no longer an option especially if you sit over 11 hours a day. The chances are 50:50 that you will die in the next three years if you have a habit of sitting.

5. You think you are one and only and there is no person that looks like you. You are wrong. There are at least six people who look like you in the world and there is a little 9% chance that you might meet one of them in your lifetime.

6. The smallest cell in the human body is the sperm whereas the largest one is the ovum egg.

7. No wonder people say: ‘Laugh and you will live longer’. This saying is now a fact, too. People who laugh a lot have much better health and happy life because laughter is also a powerful antidepressant.

8. Say goodbye to pillows! People who sleep without pillows have strengthened spine and no back pain.

9. There are two things you will never be wrong about when it comes to taking after your parents. Your height is determined by your father whereas your mother determines your weight.

10. Shake your head to wake up a sleeping body part.

11. The heat our body releases in 30 minutes can boil 1.5 liters of water.

12. The human brain can not resist noticing three things: food, attractive people and danger. However, the first thing people subconsciously notice about other people is their shoes.

13. The strongest acid in the human body is the stomach acid. It is so powerful that it can dissolve razor blades.

14. Dry tea bags are perfect solution for unpleasant odor. Finally, you can get rid of the smell in your gym bag and your shoes.

15. If you want to try all the apple varieties in the world you will need to eat one apple a day every day in the next 20 years.

16. As soon as honey bees disappear, human kind will disappear in four years as well – Albert Einstein claimed.

17. It is a fact that man can survive for a longer period without food or drink. However, man can survive only eleven days without sleeping.