The Wilson Quarterly has a lengthy essay about Americans' obsession with appearance. It has a lot of current studies and analysis. Link. Excerpts:
In general, how we look communicates something about how healthy we are, how fertile, and probably how useful in the evolutionary environment. This may be why, across a range of cultures, women prefer tall, broad-shouldered men who seem like good reproductive specimens, in addition to offering the possibility of physical protection. Men, meanwhile, like pretty women who appear young. Women's looks seem to vary depending on where they happen to be in the monthly fertility cycle. The University of Liverpool biologist John Manning measured women's ears and fingers and had the timing of their ovulation confirmed by pelvic exams. He found a 30 percent decline in asymmetries in the 24 hours before ovulation–perhaps more perceptible to our sexual antennae than to the conscious mind. In general, symmetrical women have more sex partners, suggesting that greater symmetry makes women more attractive to men.
From the conclusion:
[W]hat's needed is a much more radical democratization of physical beauty, a democratization we can achieve not by changing the definition of beauty but by changing ourselves. Looking nice is something we need to take back from the elites and make once again a broadly shared, everyday attribute, as it once was when people were much less likely to be fat and much more likely to dress decently in public. Good looks are not just an endowment, and the un-American attitude that looks are immune to self-improvement only breeds the kind of fatalism that is blessedly out of character in America.
As a first step, maybe we can stop pretending that our appearance doesn't–or shouldn't–matter. A little more looksism, if it gets people to shape up, would probably save some lives, to say nothing of some marriages. Let's face it. To a greater extent than most of us are comfortable with, looks tell us something, and right now what they say about our health, our discipline, and our mutual regard isn't pretty.
