I dunno. I keep drinking and it doesn't seem to help. Sometimes I get an energy boost from it, and I always have more booze than i can use from driving around, so why not keep at it.
BUT when I try to pick up girls at the pub, it helps if I start utterly sober, because one of the ways to impress them is to buy rounds of drinks, only you lose them if you get drunk (and a round is one for them and one for you, I guess)