I love coffee. In fact right now I am gulping down a hot cup of (unfortunately) instant coffee. However a few months ago I tried to quit drinking coffee all together, and the results were, simply devastating. Two weeks ago I picked it up again, and came to the conclusion that after drinking coffee heavily, I am an addict; only reassured by the fact that I will hopefully never have to suck cock in a dark alley way for my Folger's instant.
While browsing online for academic articles on coffee I found this academic article; "The Association of Coffee Drinking with Total and
Cause-Specific Mortality" (citation at bottom of post) which suggests that coffee drinking is correlated with lower mortality.
402,260 subjects were assessed twice, once in 1995 and then again in 2008.While it was originally found that there was an increased risk of death for coffee drinkers, it was also found that the coffee drinkers were more likely to smoke, and adjustments were made for in relation to this. After the modifier was applied, an inverse assosiation between coffee consumption and onset of mortality (with the exclusion of cancer) was found. The results were simmilar to those that had reported that they never smoked.
This study doesn't suggest why coffee drinking is associated with living a little longer; however it suggests that antioxidants many play some sort of role in this. It could be just as likely that "coffee drinkers" lead some sort of different "lifestyle". Honestly I would have thought the results would be the opposite considering caffeine is a stimulant.
Freedman, Neal D., Yikyung Park, Christian Abnet, Albert R. Hollenbeck,
and Rashmi Sinha. "The Association of Coffee Drinking with Total and
Cause-Specific Mortality." New England Journal of Medicine (2012): 1891-904. Print.