10 mysterious human behavior can not explain

Why do people kiss, blush or pick their nose? Those are the mysteries of human life that scientists still cannot find answers to.

New Scientist magazine has compiled a list of 10 simple behaviors that take place daily in our lives but still makes the world's leading brains think hard. In a new editorial published in the magazine, " For us, there is nothing more interesting than ourselves. Therefore, we have put in great effort to thoroughly understand people and Surprisingly, there are some things that are still mysterious.It varies from supernatural things like art, dreams and altruism to unreasonable things like blushing, sneezing. Because of those actions, it has special meaning ".

Here are some theories that explain why we have such behaviors.

1 - Blushing: Charles Darwin tried hard to find out why people blushed when lying and he thought that action was to make others notice. However, some people think that this will reduce conflict or create closeness because they have revealed their own weakness.

2 - Smile: Endorphin, a neurotransmitter in the brain that has a positive emotional effect, improves mood, will be produced when we laugh. It may also be an understandable reason but a 10-year study found that we laugh more because of clichés than jokes.

Hypothesis relates to memories from breastfeeding or stemming from the fact that the ancient people fed their babies by mouth .

3 - Kiss: the origin of kissing may not originate from the gene because not all people do this. There are hypotheses related to memories from breastfeeding or stemming from the fact that the ancient people fed their children by mouth, helping to strengthen the relationship.

4 - Dream: Sigmund Freud thinks that the dream represents the desire in our subconscious but this explanation is not supported by many people. Some people believe that dreams help us handle emotions, but why someone sees strange images is still unanswered.

5 - Superstition: this strange habit has no meaning in evolution, however, it is possible that the ancients have benefited from not confusing the rustle of a lion in the bush with the sound of the wind blowing. In addition religion also affects this behavior.

6 - Nosebleed: This unappealing habit does not carry any nutritional benefits. But why one quarter of children do this on average 4 times a day? Some people think it helps boost the immune system.

This habit does not bring any benefit.

7 - Wake up: Other animals have not gone through this period of instability and psychological disturbance. Some argue that it helps our brain rearrange itself before it is fully grown, or it is a behavioral testing process before people are responsible for themselves later.

8 - Altruism: Giving things without responding is an evolutionary behavior that is difficult to understand. It can help strengthen the relationship between people or just bring satisfaction.

9 - Enjoy the art: Drawing, dancing, playing music are quite similar to the display of the peacock's tail to attract mates. However, it can also be a tool to spread knowledge and exchange experiences.

10 - Hair growth: It is sparse on the body but dense in the enclosed area, in stark contrast to our ancestral animals. The reason is that the hair helps to scent, keep it warm or avoid scratching.