Are there implications for inter-racial attraction?
Okay, so gorgeous people get preferential treatment. It's a not-too-pretty fact of life long attributed to the halo effect. Now there's evidence that beauty and intelligence (and other positive characteristics) go hand in hand.
Ah, happiness, that elusive state. Philosophers, theologians, psychologists, even economists, have long sought to define it, and since the 1990s, a whole branch of psychology—positive psychology—has been dedicated to pinning it down and propagating it.