Subliminal Messages (aka "you know you're a girl when...")

I've always known that the media constantly shoves subliminal messages in our faces about everything, and especially about the "ideal" body image. Now I've always pretty much thought I was immune to it until the other day.... while watching a movie with some friends, I was munching on some cookies, when someone pointed out that I had absentmindedly suddenly started doing stomach crunches WHILE eating a cookie. No more TV or magazines for me for a while!