You mean starving yourself doesn't magically make everyone want you?
*garsp* :U
Okay, this kinda cheeses me off too. There's this "Beauty" thing, right? It's represented by how closely individuals match a certain set of traits that cultural authorities have deemed ideal. We spend a lot of our time codifying what it is, and how we might more closely approximate it.
I actually remember during childhood, some of the conversations with peers I had about who was and wasn't good-looking. I remember that my innate feelings on beauty clashed with the ones that most people were purporting... the ones they'd been taught through their enculturation. I remember when I started to question my own ideas on what made a woman "beautiful" or a man "handsome", and remember how they changed to be more in-line with the popular ideal. Another one of the things we do, as part of our responsibility to blend in to our cultural environment.
But yeah... reacting positively to that ideal is a very learned response, and it's largely irrelevant to things that we actually find aesthetically pleasing. Things like symmetry, contrast between angular and round lines, balance of form, and so on are where the beauty our brains naturally see lies. It's kinda funny to hear some people complain about how such-and-such an actress has this "weird" body type or this "funny" face, but somehow she's still pretty... like it somehow defies logic that their forced feelings and learned ideals of "beauty" actually have nothing to do with what they fundamentally see as aesthetically pleasing.
I know it's not just me that actually gets put off by people who starve themselves to maintain an unhealthy figure. That bodily stress and unhealthiness seeps into all these other aspects of their appearance and behavior, and makes them seem less lively. But I suppose there's always makeup and photoshop to restore that rosy-cheeked and lively look to half-dead flesh, after you've sucked it all out to warp your body-shape, right?
Eating well, getting enough exercise, and generally keeping your body clean, healthy and well-maintained. These are some of the best ways to look good that I know of. And when you recognize the cultural "Beauty" blinders you've fitted yourself with, it's easier to recognize how things like a person's energy level, how genuine their facial expressions seem, the clarity of their voice, the symmetry of their face, how fit and healthy they are, and so on determine how attractive we actually find people.