Have a look at https://www.bluezones.com/ https://www.bluezones.com/ which is a kind of organization that came from the study of these "Blue Zones" around the w

Have a look at https://www.bluezones.com/ https://www.bluezones.com/ which is a kind of organization that came from the study of these "Blue Zones" around the world, per article's mention. There are a handful of key principles/characteristics that make it so. Here's a nice overview as per the wiki: https://en.wikipedia.org/wiki/Blue_Zone#Characteristics https://en.wikipedia.org/wiki/Blue_Zone#Characteristics This also explains why, for example, countries that are primarily oriented around agricultural lifestyles tend to exhibit "older than usual" ages. It isn't uncommon for one household to span three (or more!) generations. The listed characteristics and what people in these countries and lifestyles tend to do have very good overlaps.