I need to get on some performance enhancing drugs.
To alcohol! The cause of, and solution to, all of life's problems...
It looks more like the causality is social groups more so than the alcohol itself. Smarter people tend to be congregated in social demographics that drink more freely, converse more freely, exchange ideas and so forth while experiencing their buzz induced brain boost.
I'm not that worried about my tee-totaling ways on this point at least.