How to Live Longer

So you want to stick around a little longer, huh? Well, if you want to follow the lead of the world's longest-lived people, many of whom live in what researchers have nicknamed Blue Zones -- areas where a remarkable number of people lead active lives past the age of 100 -- you should bone up on the simple tips they have to offer about living a healthy life. But first, take a look at who you're getting your advice from. Here: An elderly Sardinian man in 1956.