[rebuildus]

Very interesting comments about the problematic bone structure of Orientals. Did not know this. Perhaps something in (or not in) the diet?

[Zhang Fei]

[Very interesting comments about the problematic bone structure of Orientals. Did not know this. Perhaps something in (or not in) the diet?]

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Genetics. Same reason blacks have lower fat to muscle ratios. Take a look at Table 2 of this NIH study:

https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4968570/

The Mexican American number is probably a good proxy for the Oriental average, since they have common ancestors. The qualification is Mexicans are more like hapas, given that most have Spanish ancestry.