In one episode of 'Cheers', Cliff is seated at the bar describing the
> > 'Buffalo Theory' to his buddy Norm. I don't think I've ever heard the
> > concept explained any better than this. "Well you see, Norm, it's
> > like this... A herd of buffalo can only move as fast as the slowest
> > buffalo. And when the herd is hunted, it is the slowest and weakest
> > ones at the back that are killed first. This natural selection is
> > good for the herd as a whole, because the general speed and health of
> > the whole group keeps improving by the regular killing of the weakest
> > members. In much the same way, the human brain can only operate as
> > fast as the slowest brain cells. Now, as we know, excessive drinking
> > of alcohol kills brain cells. But naturally, it attacks the slowest
> > and weakest brain cells first. In this way, regular consumption of
> > beer eliminates the weaker brain cells, making the brain a faster and
> > more efficient machine. And that is why you always feel smarter after
> > a few beers."