You could probably get 90% of the benefit of the Japanese lifestyle by moving to a walkable urban environment like NYC, selling the car, and eating the japanese diet. You'd probably have to visit there first to see what that actually is. Any other East Asian diet would be fine as well - hell, a pre-1970s American diet would probably be fine.

I am curious if those life expectancy figures have been controlled for smoking, though. If not - wow.