Why do many people think that overweight people have a better temper, while people with smaller breasts have a stronger temper? Because in real life, these two appearance traits may indeed affect the social feedback a person receives, but that doesn’t mean they determine one’s personality. From a sociological perspective, a person’s appearance affects how others treat him, and also affects how he views himself. From a young age, overweight people are more likely to be expected to be “honest, easygoing, and non-aggressive,” and the long-term social feedback may lead some people to be more inclined to show that kind of behavior. Meanwhile, in some cultural environments, women with smaller breasts are more likely to face appearance-based evaluations, comparisons, and body anxiety, and as a result, some people may become more sensitive and more defensive. But this is only a difference in probabilities shaped by the environment, not a physiological determination.