It is fairly clear that there will always be anomalies, and that environment and genetics will always play a role in how long any one particular individual can live. However, there are specific pockets around the globe where individuals within these specific societies collectively and consistently exhibit a particularly high life expectancy.
Dan Buettner is a longevity expert who has travelled the world researching the underlying habits of these societies that live the longest. He calls these longevity hotspots the Blue Zones. He originally presented his findings in a National Geographic article, and followed up in detail findings in his excellent book, unsurprisingly entitled The Blue Zones. The specific regions in question are; Okinawa (Japan), Sardinia (Italy), Nicoya (Costa Rica), Icaria (Greece), and Loma Linda (United States of America).
Below are 9 lessons on the habits of people who live in these communities. Split between internal or physiological, and external or community, they often overlap. Science is now looking into these behaviours of these selected. Maybe we too can learn something.