Aggression is any hostile action that is an attack on a person or object with the purpose of hurting, damaging or destroying. The two ways of expressing aggression are verbally and physically. Children are natural "copycats." A child regularly exposed to aggression or violence in the family, among peers, on television or video games is at risk of behaving aggressively. Aggressive behavior is often a symptom of a larger problem. This concise publication explains the causes, complications and cures of aggressive and hostile behavior in children and adolescents.