Quick, think of a place that doesn’t have a mirror. Pretty hard, right? Bathrooms, of course, have them. So do cars, department stores, gyms, supermarkets, hotel lobbies, bars, subway cars, purses, bedroom walls, and bedroom ceilings. In fact, you’d almost have to be living in solitary confinement or a single-seat submarine not to have the opportunity to judge your own appearance through your reflection.^*

      Besides constantly being judged by your own gaze, your face and body often serve as the target for other people’s eyes (and perhaps whistles). While it may seem unfair to be under such constant visual scrutiny, the fact remains that beautiful people have more advantages than unattractive folks. Sounds harsh, we know, but just consider the evidence:

      In this part of the book we’ll be examining the elements that primarily determine whether or not you’re perceived as beautiful or not—things like skin, hair, and body shape. But before we start any specific discussion of various wrinkles and jiggles, we’d like you to take a step back and look at the bigger picture.

      Though we’ll have plenty to say about the body’s anatomical wonders, the most important body part of all when it comes to beauty isn’t a luscious lip or hardened glute. It’s your brain.

      Now, we’re not suggesting that the pituitary gland and hypothalamus are party-stopping body parts the way a silky mane or a plywood-flat waist may be.^* What we are suggesting is that beauty is always on your mind. In fact, your brain needs beauty.

      Your brain—under intense demand to process an infinite amount of information at any given moment—must make choices about whom to trust, whom to mate with, and whom to run from. It does this by dispensing with unnecessary stimuli—and drawing conclusions from a select few pieces of info. So we’re not programmed to not worry about whether a strand of hair is out of place but are programmed to note the subtleties of facial expressions, whether the slight curve in a lip is conveying anger, sadness, or fear. That process, really, is the foundation of perception—how you perceive and contextualize the facts and faces all around you.^† Beauty is not as much a physical property of the person, as the end product of a complex mental process that translates millions of meaningless dots of light on the back of our retinas into 3-D shapes, objects, and faces. Embedded in the software of the mind is a set of rules that are used to decode these raw “bytes” of visual information. Think of these “bytes” as the letters in the alphabet. The perceptual rules are like grammar; they determine how the parts are combined to create a whole.

      What’s most interesting is that these observations are automatic—a beauty reflex, if you will. Most of us, especially when we’re young, have a strong sex drive—a drive so strong, in fact, that it often overshadows all of our other natural drives. But nobody instructed