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All health and human physiology is still just correlational on the micro scale. The scale of the benefits for coffee are so large (approaching 20% for things like reduced mortality rate) that it's pretty hard to imagine it's just a correlation. The inverse correlation also holds strongly true in that people who don't regularly consume coffee have a significantly higher rate of all-cause mortality. I think another thing is that people have actively searched for evidence of negative health consequences of coffee because intuitively it seems there 'ought' be. That study I linked to is a meta-analysis looking at a wide array of other studies and still seeing those strong correlations.
As for wine, you'd have to eat an obscene amount of grapes - likely in the hundreds - to get comparable benefits and some studies have shown the ethanol itself as a positive player though obviously in moderation.
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[–] rwbj ago
All health and human physiology is still just correlational on the micro scale. The scale of the benefits for coffee are so large (approaching 20% for things like reduced mortality rate) that it's pretty hard to imagine it's just a correlation. The inverse correlation also holds strongly true in that people who don't regularly consume coffee have a significantly higher rate of all-cause mortality. I think another thing is that people have actively searched for evidence of negative health consequences of coffee because intuitively it seems there 'ought' be. That study I linked to is a meta-analysis looking at a wide array of other studies and still seeing those strong correlations.
As for wine, you'd have to eat an obscene amount of grapes - likely in the hundreds - to get comparable benefits and some studies have shown the ethanol itself as a positive player though obviously in moderation.