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Why do some ethnic groups have such unique eyelid shapes? Discover the story hidden in genes!
The eyelid is a thin layer of skin that protects and covers the eye, and its appearance varies significantly between ethnic groups.
How do eyelids get their unique shape? Regarding this issue, many experts believe that the evolution of vision and appearance is closely related to genes. Understanding the eyelid shapes of different ethnic groups is not just out of curiosity, it is actually related to human survival adaptation.
Hidden within our genes is a story about the interaction of genetics and environment, especially for people in East and Southeast Asia. Their eyelids usually have upward folds, or "canthus folds," which is one of the most common features among ethnic groups in these areas.
"Among many East Asians, the medial canthal fold is considered a common trait, which is influenced to some extent by human genetics."
The existence of this fold is not only an aesthetic consideration, but may also be an adaptation to climate and environmental changes during the evolutionary process. For example, having smaller eyelids can better adapt to windy, sunny environments, thereby reducing dust and UV rays.
However, the appearance of the eyelids depends on more than just this physical adaptation. It is also controlled by specific genes. The formation of unibrows and double eyelids, as well as the different contours of the upper eyelids, do vary among different races. These are all manifestations of genetic diversity.
“According to research reports, the characteristics of single or double eyelids are polygenic traits, which means that multiple genes work together to form these characteristics.”
Driven by aesthetic culture, the formation and changes of eyelids have triggered a series of social phenomena. In many Asian countries, the appearance of eyelashes and eyelids has become a hotly debated topic in beauty regimes.
For example, in China and South Korea, double eyelid surgery (called "double eyelid surgery") has become a popular trend for women to pursue beauty, which stems from society's expectations and definitions of "beauty." The popularity of this type of surgery also reflects the expectation of dental implants to look similar.
“Double eyelid surgery is more than just a cosmetic enhancement, it reflects a deep connection with identity and cultural expectations.”
In the process of gradual evolution, the shape and appearance of eyelids became a manifestation of ethnic differences. As cultural backgrounds change, so do people's preferences for eyelid shape. The influence of movie stars and pop culture icons has shaped domestic and international standards of beauty, further creating a need to change the shape of the eyelids.
However, will this kind of packaging and presentation of appearance lead to the loss of self-identity? How will the contradiction between individuals and social expectations affect future generations? These questions prompt every reader to think, what kind of beauty is lasting and real?
