Man, as the crown of nature, has a perfect body in which there is nothing superfluous.
But this does not mean that people know everything about their bodies. For example, eyelashes protect the eyeball from dust and other debris. Then why eyebrows?
Scientists have found that eyebrows formed on the human face during evolution and were a great help at one time, reports the scientific publication Nature Ecology and Evolution.
They still play an important role in protecting the eyes from sweat, dust and other irritants.
But this is just an additional option, as they say these days.
Few people know that the main function of eyebrows is social.
After studying eyebrow movement, researchers came to the conclusion that it is a communication tool.
As it turns out, Charles Darwin had already suggested something similar in the 19th century.
People move their eyebrows to express a variety of emotions.
This could be surprise at an unexpected meeting, anger, concentration.
Even the expression of sympathy is also associated with this part of the face.
Based on the results of their observations, scientists stated that eyebrows are a tool of non-verbal communication.
With their help, people united into groups, which helped them survive in difficult situations.
Earlier we talked about what will happen to a person if he cries every day .
