It doesn't seem that height has everything to do with genetics, if we observe the average heights of taller countries in the past. Things like diet and perhaps

It doesn't seem that height has everything to do with genetics, if we observe the average heights of taller countries in the past. Things like diet and perhaps healthcare are also factors. When it comes to the Dutch, they didn't always use to be the tallest: - http://suite101.com/article/why-are-the-dutch-so-tall-a55753 http://suite101.com/article/why-are-the-dutch-so-tall-a55753