I think lack of stress, physical activity and the Mediterranean diet do it. Especially olive oil.

Yasoo! I lived in Greece for three years. Well maybe I lazed around in Greece for three years..

we lived in Kalamata from '88 to '99, great place to be.

@Jimbo: Lovely place! Olives and Ouzo, summer salads, siestas...

aaaaah yes, we had many greek friends and went 'native'. best memories are of an old taverna which used to do live music and singing folk songs, from ten o'clock at night until about four in the morning

Yes, the tavernas are the best. I was there in 1980 and I remember we couldn't spend a tenner, though we almost died trying!

See also: http://clipmarks.com/clipmark/45F5FCB8-A44E-48A5-83B1-9377F446A750/
World's Oldest Person Dies at age 115

He offer tips for living a long life :"more education"