Why are Shandong people not as tall as Guizhou people?

Shandong people are not tall to begin with. The so-called tallness is something they boast about themselves. Since Zhu Yuanzhang killed all the people in Shandong, he immigrated to Shandong from Yunnan, Guizhou, Shanxi and other places. Let’s put it this way: The ancestors of Shandong people are mostly from Yunnan, Guizhou and Sichuan in the southwest region. There are a few immigrants from Shanxi Sophora japonica. Genetically speaking, Shandong people cannot be tall. Few Shandong people have good genes and good skin.