In addition to their involuntary focus on food, people with Prader-Willi Syndrome tend to have obsessive/compulsive behaviors that are not related to food, such as repetitive thoughts and verbalizations, collecting and hoarding of possessions, picking at skin irritations, and a strong need for routine and predictability. Frustration or changes in plans can easily set off a loss of emotional control in someone with Prader-Willi Syndrome, ranging from tears to temper tantrums to physical aggression. While psychotropic medications can help some individuals, the essential strategies for minimizing difficult behaviors in Prader-Willi Syndromeare careful structuring of the person’s environment and consistent use of positive behavior management and support.