1. Coffee changes taste, which is why we like to drink coffee with sweets.

2. Rejection and physical pain are perceived the same by the brain. Brain receptors activate when we are rejected. The same receptors work when we experience physical pain.

3. An airplane can fly more than 100 kilometers with a hole in the tank and engines turned off. Of course, such a case happened only once.

4. Monkeys see living creatures in inanimate objects. The thing is, they are always afraid for their lives, so they imagine threats even where there are none.

5. A mattress doubles in weight after 10 years of use. Because during this time, dust and dust mites accumulate.

6. Our brains react differently to verbal and non-verbal tasks. Surprisingly, the brain perceives sign language more understandably than words.

7. We are 1% taller in the morning than in the evening. The thing is, during sleep, the spinal discs relax and expand at night.

8. There are more life forms on human skin than people on the entire planet combined. Our body is inhabited by more than 90 trillion bacteria.

9. Otters hold paws while sleeping, eating, or just drifting on the water. This helps them not to lose each other.

10. Elvis Presley was blond. Later, the King of Rock`n`Roll decided that dark hair would better highlight his eyes.

11. It is easier for us to make a decision when we pose the task in a foreign language. Because in such a case, the brain analyzes the situation more accurately.

12. The air we breathe in the subway consists of about 15% dead human skin cells.

13. The chance of dying while going to buy a lottery ticket is greater than the chance of winning the lottery.

14. Hair structure completely changes in the first year of life. That`s why light hair can also become dark.

15. Polar bears, when trying to hide in the snow, cover their dark nose with a paw.

16. Pessimism is inherited. Scientists have discovered that people with negative thinking have a mutated ADRA2b gene.

17. On our planet, there are more people suffering from obesity than those suffering from hunger. It turns out that 30% of people suffer from obesity. 5% of them die because of this problem.

18. Our smile can be of three types: attractive, affirming, ideal.

19. When photographs first appeared, it was customary to be photographed in festive attire with a serious facial expression. It was popular to photograph dead people so that they looked still alive.

20. The first photographers, trying to add the desired effect to the image, used ordinary watercolor paints.

These facts are surprising, but they only show the beauty of the world`s diversity.