The Secret to living Longer ‘The Village Effect’ by Susan Pinker.  Susan discovered that the on the Island of Sardinia there are more that 6 times as many centenaries than the mainland and 10 times more that North America.  She set out to find out why! Its not what you expect it might be indeed it was more to do with close personal relationships and face-to-face interactions. Please also see the link below for a very interesting Ted Talk