Okinawans are a specific subset of centenarians with distinct lifestyle and diet, not quite representative.
What I mean is that Eastern Asian culture in general avoid the sun because pale skin is considered "more beautiful" vs. tanned for Western culture - ex: using umbrellas to cover sun.
Also, myopia epidemic in Asian countries is due to upbringing with strong emphasis in studying indoors but lacking encouragement for sports or outdoors activities: https://news.ycombinator.com/item?id=38782482#38783161
I hear that but what I am saying is that the cohorts whose longevity is being measured (ie, people dying now who were born in ~1950) grew up in an utterly different world and did not spend their adolescence indoors avoiding the sun, they were mostly rural, agricultural, poor, and outdoors.
We have no idea what the longevity of the current ~30yo urban east asian will be, but the lifestyle is so radically different than their grandparents that I don't think there's any value in connecting the two.
What I mean is that Eastern Asian culture in general avoid the sun because pale skin is considered "more beautiful" vs. tanned for Western culture - ex: using umbrellas to cover sun.
Also, myopia epidemic in Asian countries is due to upbringing with strong emphasis in studying indoors but lacking encouragement for sports or outdoors activities: https://news.ycombinator.com/item?id=38782482#38783161