Those small fine lines less than a centimeter long behind the corner of the eye sometimes make you full of setbacks, and sometimes they are the marks of pride. These fine lines are actually caused by an uncontrolled twitch of a small muscle. Whether these fine lines make us go to the dermatological clinic in a hurry or think of my mother's smile, they are all part of our lives.
Everyone likes to call her crow's feet with fine lines around her eyes. However, this crow's feet actually has an unfathomable proper noun, which is called Du Xing mark in English and Du Xing mark in Chinese. Susan Taylor, an associate professor at the University of Pennsylvania School of Medicine, said, "crow's feet are expression lines associated with smiles, while other lines, such as forehead or fine lines on the forehead, are expressions associated with frowning. Imagine yourself smiling, that kind of smile with wrinkled eyes can give people a warm feeling.
Psychologists have long thought so. Crow's feet is so important in psychology that it has a name: Du Xingbiao. Alexander Todorov, a professor of psychology at Princeton University, who has studied facial expressions and written Face Value: The Impatience of First Impression, said: "When you see a person smiling, you will judge whether the person is sincere or false. Usually we see crow's feet squeezed out of the corner of our eyes as sincere smiles. He added: "Impression may not be accurate, but it is very important in daily life and will affect your experience. Surprisingly, when you study the photos in the school yearbook, the heads of politicians and the old photos with crow's feet, you can predict the low divorce rate, the chances of being elected, and whether others think you are rich.