Generalized anxiety disorder (GAD) is characterized by excessive and uncontrollable worries and associated somatic and cognitive symptoms. Generalized anxiety disorder is a mental health disorder that produces fear, worry, and a constant feeling of being overwhelmed. It is characterized by excessive, persistent, and unrealistic worry about everyday things. This activity illustrates the evaluation and management of generalized anxiety disorder and explains the inter professional team's role in managing patients with this condition. The aim of the current chapter is to present a review of theoretical models and empirical findings on the etiology and maintenance of GAD.