An interesting article, which begs another question. Are the intestines of Japanese bigger compared to those of neighbouring Asians - the Chinese and the Koreans (from whom they apparently descended despite a reluctance to accept this fact) ? This should answer the question of whether it's the genetics at play or the diet itself.
Remember the American doctor mentioned Asian women and not Japanese. Statistically speaking there is a higher chance that the woman with long intestines happens to be Chinese. His comment also brings up another interesting question as to whether the lengths of male and female intestine are different. Why did he mention women specifically?
Modern Japanese are an admixture of earlier aboriginals who populated the islands first and an isolated group of later immigrants that was likely distinct from other East Asian groups. There is plenty of room for them to have unique phenotypes due to this.
Japanese and Koreans are basically the same people, genetically and linguistically. At least among the consensus of non Japanese researchers. Japanese uniqueness infects the humanities as well...
English speaking countries: UK, Australia, New Zealand, USA, Canada. Last time I checked they all came from the UK so are genetically the same. So his definition is correct, friend.
Read the context, friend. The original comment this guy replied to was pointing out that people may have different traits because of their exposed environment even though they had same origins. Are we all same people since we are all homo sapiens? Is a Japanese person whose great great grandfather was an American "same people" as pure breed Japanese? What is "Same people" anyway?
Remember the American doctor mentioned Asian women and not Japanese. Statistically speaking there is a higher chance that the woman with long intestines happens to be Chinese. His comment also brings up another interesting question as to whether the lengths of male and female intestine are different. Why did he mention women specifically?