It will come as no surprise to anyone who's ever talked to my grandpa, but a recent study has shown that standing up to a bully is good for you. Although being bullied can be stressful and lead to depression, children who returned hostility were found more likely to develop healthy social and emotional skills. From the article: "In a study of American children aged 11 and 12, researchers from the University of California, Los Angeles, compared those who stood up to aggressors with those who did not. Children who returned hostility with hostility appeared to be the most mature, the researchers found. Boys who stood up to bullies and schoolyard enemies were judged more socially competent by their teachers. Girls who did the same were more popular and more admired by teachers and peers, the researchers found."