South Americans are predominantly Catholic and less prone to drinking/smoking and end up fostering a community
South Americans are predominantly Catholic and less prone to drinking/smoking and end up fostering a community
Also, if your hypothesis was true, then it would need to hold for other [Roman] Catholic groups for that to be the key factor. That does not seem to be the case as, according to Wolfram Alpha, the top life expectancy (at 84.4 years) is Macau, followed by Japan (83.6) then Switzerland (82.6) and Australia (82.5) tied with Andorra. Italy is 6th though.
While there are Roman Catholic countries high up, there are also higher ranked, non-Roman Catholic ones.
There are many convincing cases of benefit derived from religious faith but I'm not sure you can make such a case for life expectancy.
Most non-Hispanic Americans end up not having a common element or belonging to such a community. The effects on health may vary from less binge drinking to a more helpful family.
Now, my dad's Irish side of the family, at least the men, died in their 60's. I have a feeling I will take after my Irish ancestors. Maybe, I will get lucky?
I am glad to hear something positive about Hispanics--too often it's negative. I always leave out my Hispanic heritage because it's just not worth the stereotypes.