How do core beliefs and intermediate beliefs arise? People try to make sense of their environment from their early developmental stages. They need to organize their experience in a coherent way in order to function adaptively (Rosen, 1988). Their interactions with the world and other people, influenced by their genetic predisposition, lead to certain understandings: their beliefs, which may vary in their accuracy and functionality. Of particular significance to the cognitive behavior therapist is that dysfunctional beliefs can be unlearned, and more reality- based and functional new beliefs can be developed and strengthened through treatment.