An interesting article about so-called "blue zone" areas of longevity:
Six out of 10 of people aged over 90 are still physically active, compared with about 20% elsewhere. Most food is cooked in olive oil. Large quantities of wild greens and herbs are gathered from the hillsides for both food and medicinal purposes.
Whole thing can be read here: http://www.bbc.co.uk...gazine-20898379