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The problem is that while the jaw has decreased in size for Japanese women over the past 2,000 years (I'll try to update with an actual study I saw), the teeth have remained the same size, and it's particularly a problem for the so called "Mongoloids" because they have wisdom teeth almost always. This leads to overcrowding of teeth and thus the stereotypical crooked teeth that is for Japanese women the badge of shame for all Asians.
Well, the Yayoi seems to come from mainly Korea, and replaced the Jomon in Japan within the last 2,000 years. Within that time period, there seems to have been some noticeable pedamorphic tendencies in Japanese females. Compared to Korean females, Japanese females are more child-like, with weaker jaws.
From this type of jaw: (Mongolian women)
To this type of jaw: (Japanese women)
The causes of reduced jaws is a general gracilization trend in post ice age humans, and there could be a number of causes, such as sexual selection, adapting to eat mush from agricultural products instead of fiberous and meaty stuff of hunter-gatherers, getting smaller for the warmer weather. The problem is particularly a problem for Japanese women because they are very pedamorphic, going from big-jawed Mongolian types to lil' girl types in a matter of millenia.
Below are qoutes from an article address this problem:
"Evolving to Eat Mush": How Meat Changed Our Bodies
http://news.nationalgeographic.com/news/20...human_diet.html
"Our taste for meat has also led us into some troubleour teeth are too big for our downsized jaws and most of us need dental work."
...
"Tool-use no doubt helped early humans in butchering their dinners. But there is evidence that the advance to cooking and using knives and forks is leading to crooked teeth and facial dwarfing in humans.
Today it's relatively rare for someone to have perfectly straight teeth (without having been to the orthodontist). Our wisdom teeth don't have room to fit in the jaw and sometimes don't form at all, and the propensity to develop gum disease is on the increase.
"Virtually any mammalian jaw in the wild that you look at will be a perfect occlusiona very nice Hollywood-style dentition," said Peter Lucas, the author of Dental Functional Morphology and a visiting professor at George Washington University in Washington, D.C. "But when it comes to humans, the ideal occlusion [the way teeth fit together] is virtually never seen. It's really the only body part that regularly needs attention and surgery."
Lucas argues that the mechanical process of chewing, combined with the physical properties of foods in the diet, will drive tooth, jaw, and body size, particularly in human evolution.
Essentially, by cooking our food, thereby making it softer, we no longer need teeth big enough to chow down on really tough particles. By using knives and forks to cut food into smaller pieces, we no longer need a large enough jaw to cram in big hunks of food.
"We're evolving to eat mush," said Bernard Wood, a paleoanthropologist at George Washington University."
Well, the Yayoi seems to come from mainly Korea, and replaced the Jomon in Japan within the last 2,000 years. Within that time period, there seems to have been some noticeable pedamorphic tendencies in Japanese females. Compared to Korean females, Japanese females are more child-like, with weaker jaws.
From this type of jaw: (Mongolian women)
To this type of jaw: (Japanese women)
The causes of reduced jaws is a general gracilization trend in post ice age humans, and there could be a number of causes, such as sexual selection, adapting to eat mush from agricultural products instead of fiberous and meaty stuff of hunter-gatherers, getting smaller for the warmer weather. The problem is particularly a problem for Japanese women because they are very pedamorphic, going from big-jawed Mongolian types to lil' girl types in a matter of millenia.
Below are qoutes from an article address this problem:
"Evolving to Eat Mush": How Meat Changed Our Bodies
http://news.nationalgeographic.com/news/20...human_diet.html
"Our taste for meat has also led us into some troubleour teeth are too big for our downsized jaws and most of us need dental work."
...
"Tool-use no doubt helped early humans in butchering their dinners. But there is evidence that the advance to cooking and using knives and forks is leading to crooked teeth and facial dwarfing in humans.
Today it's relatively rare for someone to have perfectly straight teeth (without having been to the orthodontist). Our wisdom teeth don't have room to fit in the jaw and sometimes don't form at all, and the propensity to develop gum disease is on the increase.
"Virtually any mammalian jaw in the wild that you look at will be a perfect occlusiona very nice Hollywood-style dentition," said Peter Lucas, the author of Dental Functional Morphology and a visiting professor at George Washington University in Washington, D.C. "But when it comes to humans, the ideal occlusion [the way teeth fit together] is virtually never seen. It's really the only body part that regularly needs attention and surgery."
Lucas argues that the mechanical process of chewing, combined with the physical properties of foods in the diet, will drive tooth, jaw, and body size, particularly in human evolution.
Essentially, by cooking our food, thereby making it softer, we no longer need teeth big enough to chow down on really tough particles. By using knives and forks to cut food into smaller pieces, we no longer need a large enough jaw to cram in big hunks of food.
"We're evolving to eat mush," said Bernard Wood, a paleoanthropologist at George Washington University."
Someone asked me to post this.
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It's not a flame topic or an insult. It's based on an anthropological article.
2 ,but I really do like the way some of their teeth are made , but I'ts not just limited to Japanese women either.
my preference is that i think asians in asia look better. but we all got different tastes 
What european trends? Be more precise, and name some european trends and from which country it is. 
- :shocked:
