Many childhood and adolescent stress-related symptoms have a psychophysiological component that involves muscular tension and/or autonomic nervous system dysfunction. Examples of this include recurrent headache, chest pain, abdominal pain, syncope, and dizziness. After a careful medical and psychosocial evaluation, the clinician may identify many patients who are appropriate for the application of stress reduction techniques such as progressive muscular relaxation, meditation, biofeedback, and relaxation/mental imagery (self-hypnosis). This review describes these techniques and their application with selected children and adolescents.