You've got to love any scientific study that rates its participants from "relaxed and benign" to "unambiguously drunk," especially when the purpose of the study is to debunk the "beer goggles" myth.

You know about beer goggles: It's the idea that drinking enough beer will trick your mind and turn the Cat Lady into Megan Fox.

Turns out it's not true, as some researchers from the University of Leicester learned on a tour of British pubs.

They showed 240 participants photographs and asked them to guess the model's age and rate their appearance. It turns out that drinking had little effect on men's ability to guess a woman's age, and tippling actually made participants find the women in the photographs less attractive.

Alcohol consumption did seem to have some effect on women's ability to guess the age of people, so if you wake up one morning really hungover next to someone who looks like a bad guy from Scooby Doo, you've still got that excuse going for you.

On the flip side, researchers at the University of Oxford supposedly proved the existence of beer goggles a few years ago. They even figured out a handy formula to determine just exactly how much your inebriation is affecting your attraction. As valid as the research above may be, we prefer to believe anything that rationalizes our previous mistakes.

After the jump, find out your own beer goggles prescription.

It turns out that your risk of a coyote-ugly morning depends on a few variables: how dark a room you're in, the distance between you and the lucky fellow, how smoky the environment is (the smokier a room, the more severe your beer goggles will be) and, of course, how much you've imbibed.

Fill out the form below to evaluate your decisions of nights past, or to set a preemptive cutoff for evenings to come. Here's to smarter decisions this season.

An		Number of drinks
S		Smokiness of the room (0-10, where 0 means there's an Ionic Breeze in the room; 10 means Aunt Ethel and her Misty 100s are)
L		Luminance of "person of interest" (1-150, where 1 is pitch black; 150 is a normal room in daylight)
d		Distance from "person of interest" (0.5 to 3 meters. 1 meter = 3.28 feet. Sorry, they're British.)
Final value:

RESULTS:
If your prescription is ...
*Less than 1: There's no effect on your perception. What you see is what you get.
*1 to 50: People are starting to look a little easier on the eyes, but you're still a pretty rational judge.
*51 to 100: The beer goggles are on in full effect. Drinker, beware.
*101 and up: Go home. Alone. Now. At this level, it looks like you're in a room full of Jude Laws, James McAvoys and Jake Gyllenhaals. Sure you are.

NOTE: We highly suggest bookmarking this site on your phone. When you can't even count how many fingers there are, you're not about to start calculating multi-variable equations on a cocktail napkin.

Thanks to David Chen for coding the calculator.