Howstuffworks "There's a mathematical formula for the "beer goggles" effect?"

Howstuffworks "There's a mathematical formula for the "beer goggles" effect?": "Many of us have heard of the so-called 'beer goggle' effect. It's the phenomenon that occurs when someone's had a few alcoholic drinks and suddenly, all of those people who looked semi-attractive on entering the bar look really, really appealing. Scientists have shown that it's not just a lowering of standards -- alcohol actually stimulates the part of the brain that judges facial attractiveness.

In 2002, researchers at St. Andrews University and Glasgow University in Scotland took 80 college students and had half of them drink a 'moderate' amount of alcohol -- between one and four servings, depending on gender and body weight. The other half, the control group, remained sober. Scientists showed each subject pictures of people of the opposite sex. In all cases -- male and female alike -- the experimental (tipsy) group rated each picture an average of 25 percent more attractive than the sober group did."

The formula goes like this:

β =	(An)2 x d(S + 1) √L x (Vo)2