From a BBC article on why Andorrans have the longest lifespan of any people on earth:
"Minister and government spokesman, Juli Minoves, is quietly proud of his compatriots' longevity but not particularly surprised by it.
He thinks attitude is just as important as altitude here.
He points out the almost non-existent crime levels in Andorra, that there is a single prison with about 50 inmates.
And he puts a general feeling of well-being and security partly down to seven centuries of war-free history."