This article from Science News in regards to a study done on vodka and creativity is very interesting! To sum it up, a study showed that men who drank just enough to be above the legal alcohol limit in the U.S. were able to quickly and more correctly solve cognitive, creative, problem-solving questions than a comparison group who did not drink. The reasons offered for this were that creativity is heightened because the ability to control your own thoughts is lowered, or because somewhat intoxicated individuals are less afraid to make mistakes.
In my opinion, the last point makes the most sense. When you have had some drinks, you feel much more at ease to say what's on your mind, whether it makes sense or not unfortunately, and you feel much more confident. Now, how on earth do I join these vodka studies?!
Read article here: http://www.sciencenews.org/view/generic/id/338406/title/Vodka_delivers_shot_of_creativity