For example, if tribes migrate (d) to a certain
locale or are forced out of an
ideal way of life due to cataclysm etc, (such as leaving fruit bearing tropical climates due to sea level rise in ancient prehistory as seen from underwater megalithic stone temples from around the world) then that does nt mean their way of life currently is the
most ideal that the body thrives on, such as «paleo» diet or atkins diet or other FAD BULLSHIT low carb, high fat diets that are EXTREMELY HARMFUL AS CITED CONCLUSIVELY.