Many patients with pulmonary complaints fail to improve despite physicians' best efforts. Sometimes, we ascribe this failure to lack of adherence with therapy, or to the severity of the condition. What we often fail to appreciate, however, is that sometimes the lack of improvement can be explained by the patients' psychological states. The first section of Functional Respiratory Disorders: When Respiratory Symptoms Do Not Respond to Pulmonary Treatment will help clinicians recognize functional respiratory symptoms that can arise as a result of both organic and psychological causes....