title: Anxiety: Theoretical considerations.
mesh_terms: D001007:Anxiety / Q000523:psychology*; D001008:Anxiety Disorders / Q000523:psychology; D003469:Culture; D005619:Freudian Theory; D006791:Hostility; D006801:Humans; D007398:Interpersonal Relations; D010698:Phobic Disorders / Q000523:psychology; D011574:Psychoanalytic Theory; D011582:Psychological Theory; D012094:Repression, Psychology; D012649:Self Concept; D012931:Social Environment