I find it weird that >15 drinks a week is 80%ile, given that that's a pretty standard moderate level of drinking in many parts of the world and is significantly healthier than not drinking at all.
IQ and alcohol consumption are highly correlated. IQ and health & longevity and highly correlated. I think even a lot of alcohol in the context of a good diet is benign, but I'm skeptical about the health benefit claims. I think they're just not properly controlling for other factors like intelligence. Somebody needs to run the data controlling for IQ.
http://www.psmag.com/navigation/health-and-behavior/truth-wo...