While the average height of Japanese adults had grown some 15 cm (nearly 6 inches) over the past century with improved nutrition and public health conditions, it has started to decline for those born in 1980 or later, recent research has shown.
It's official: Japan's population is dramatically shrinking - The Washington Post
美国白男怎样殖民日本（操作去雄化）
美国「精神阉割」掉了日本的民族性吗？ - David Wan 的回答- 知乎
Human Height - Our World in Data
Frontiers Twenty-Year Trends of Low Birth Weight in Japan: A Joinpoint Regression Analysis of Data From 2000 to 2019
More Japan Articles - The Japan Times
Why were the Japanese so short before 20th century? The average Japanese height in WW2 was around 150 cm. Why? - Quora
Japan's average adult height declining for those born in 1980 or later
Why were the Japanese so short before 20th century? The average Japanese height in WW2 was around 150 cm. Why? - Quora
Demographics of Japan - Wikipedia
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