Nido (Nest) therapy is focused on changing a person’s environment, not their personality. The idea that changing the environmental context can help heal mental illness is important. This includes our physical environment as well as our culture and biochemistry. Nido (Nest) therapy places a high priority on individualized plans and individual therapy for the treatment of anorexia, bulimia, exercise addiction and chemical dependency. It is also used in the treatment of substance abuse, psychosis and personality disorders.