What is the historical reason for the long neck of a long-necked person?

According to legend, before the residents angered the gods, they sent tigers to eat woman. So they decided that all girls should wear bronze neck rings for self-defense. However, there are also legends that these Karen people originally lived in eastern Myanmar, making a living by farming, and did not fight against the world. However, outsiders deliberately annexed the natural resources in this area, which led to the war. When men go out to fight, women cast precious metals into gold, silver or copper rings and wear them around their necks or feet. This custom has been handed down.

Every woman with a long neck knows how to clean her neck with herbs. Only a few times in her life did she take off the copper ring around her neck, that is, she got married, gave birth to a child and died. Usually, they will not easily let outsiders see the appearance of taking off the copper ring, even if they are very close to their husbands.

Although historians and folklorists have different opinions on the origin of the custom of "long-necked women" winding copper rings. But one thing people already know: the "long-necked woman" continues to exist because of money. Since 10 years ago, hundreds of Badong tribe members have been living in refugee camps on the border between northern Thailand and Myanmar. Although they are illegal immigrants, because of their unique tourism value, they have a foothold in Thailand and their lives are much better than those of other tribal refugees. Long-necked girls deal in all kinds of souvenirs. They live entirely on tourism. According to their custom, when a girl is five years old, she will put a copper ring around her neck and limbs with a copper ring of 1 kg. This process is not complicated.

After the girl received a few hours of massage, someone skilled in this technology wrapped a copper ring around her neck, and the cross-sectional diameter of the copper wire could reach 1.5 cm. After the ceremony, the girl's family will invite the whole village to celebrate. For the next few months, the girl will always wear those copper rings, waiting for her neck to change.