A herd of buffalo can only move as fast as the slowest buffalo, much like the brain can only operate as fast as the slowest brain cells. The slowest buffalo are the sick and weak so they die off first, making it possible for the herd to move at a faster pace.

Like the buffalo, the weak, slow brain cells are the ones that are killed off by excessive beer drinking and socializing, making the brain operate faster.

The moral of the story: Drink more beer, it will make you smarter.