### [Headline Editor's Tweet: Why do pure Han people have single eyelids?Where do double eyelids come from?Must see the popular science of Yan and Huang's descendants!]
#### Keywords: pure Han people, single eyelids, double eyelids, origin, descendants of Yan and Huang
---
As the editor of Toutiao, today we want to reveal a curious topic: why do pure Han people mostly have single eyelids? Where do the double eyelids of the descendants of the Han people come from? Today, let's explore this myth that the descendants of Yan and Huang urgently need to understand!
### Title: [Mysterious Origin] Why do pure Han people mostly have single eyelids?
When we talk about the characteristics of the Chinese, the single eyelid is a part that cannot be ignored. Among the Han people, the proportion of single eyelids is significantly higher than that of other ethnic groups, which has aroused widespread thinking and curiosity: why do pure Han people mostly have single eyelids?
### Description: Uncover the mystery of the Han people's double eyelids, the popular science that the descendants of Yan and Huang must know!
Everyone is unique, so our looks vary from person to person. Throughout history, we have found that the phenomenon that Han people mostly have single eyelids has existed since ancient times. However, this does not mean that all pure Han Chinese people are single eyelids. In some cases, Han Chinese descendants also develop the characteristic of double eyelids.
So, where did the double eyelids come from? To understand this problem, we need to go back to the Yanhuang era.
### Body:
#### [Magical Inheritance] Trace the origin of pure Han double eyelids
Throughout the historical documents, we find that most of the ancestors of the Yanhuang era had single eyelids. This trait has been inherited for thousands of years and has become one of the common traits of pure Han people.
The physical characteristics of Chinese people are influenced by many factors, including genetic and environmental factors. Genetically speaking, both single and double eyelids are variations within the normal range. In ancient times, due to the low genetic diversity, the single eyelid gene was relatively more common among Han Chinese. This also explains why many pure Han Chinese people have the characteristic of single eyelids.
#### [Afferent double eyelids] Alien genes are fused with the characteristics of Han Chinese offspring
However, with the evolution of history, China began to communicate with the outside world, and the migration of various ethnic groups and the number of marriages and marriages gradually increased. This led to the fusion of foreign genes with pure Han Chinese genes. In this process, the double eyelid features carried by some foreign genes were gradually introduced to the offspring of the Han people.
According to the research of archaeologists, after the Sui and Tang dynasties, various ethnic groups related to the continuous development of the Silk Road and cultural exchanges entered the Central Plains, and intermarriage with Han people became the norm. This led to the gradual spread of foreign genes among the Han population, including the introduction of the double eyelid gene.
#### [The popularization of double eyelids] The influence of fashion and aesthetics on the appearance of the descendants of the Han people
In addition to genetic factors, the influence of fashion and aesthetics is also an important reason for the popularity of double eyelids. In modern times, with the progress of society and the improvement of openness, Western culture and aesthetic concepts began to penetrate into China. Western aesthetic standards for double eyelids are gradually becoming popular in China, and more people are beginning to accept and pursue the appearance characteristics of double eyelids.
With the development of cosmetic surgery, more and more people are choosing to change their appearance through surgery or other means. This also provides more possibilities for the descendants of the Han people to obtain double eyelids, which promotes the popularization of double eyelids.
### Conclusion:
The phenomenon of pure Han single eyelids originated from ancient heredity, and the descendants of Han Chinese people obtained double eyelids in a variety of ways. Whether it is genetic fusion or cultural influence, it is constantly enriching and changing the appearance and characteristics of the Han people.
There is no superiority or inferiority between double eyelids and single eyelids, and each one has its own unique charm. We should respect and accept different facial features, and be open to diverse aesthetic perceptions.
I hope that this popular science article can solve all kinds of questions about the single eyelid and double eyelid of the pure Han people for the majority of Yan and Huang descendants, so that we can better understand our own characteristics and historical background.
Remember, a beautiful Chinese look doesn't have to be limited to a single standard. Everyone is the pride of Huaxia!