People who are depressed or sad often worry. In fact, worry is one of the most common symptoms of anxiety in depression. People who worry all the time may meet the formal diagnostic criteria for generalized anxiety disorder (GAD).
GAD is an anxiety disorder characterized by excessive or unrealistic worry over many issues including work, school, health and family. The intensity, duration or frequency of the anxiety and worry is far out of proportion to the actual likelihood or impact of the feared event. In addition, people with GAD may experience:
Both depression & anxiety are characterized by negative repetitive thinking. Although the specific content may be different, the underlying processes may be similar.