What condition is characterized by persistent worry affecting daily life?

Generalized anxiety disorder (GAD) is characterized by persistent and excessive worry about various aspects of life, including work, health, and social interactions, which can significantly interfere with daily functioning. Individuals with GAD often find it challenging to control their worries and may experience physical symptoms such as restlessness, fatigue, difficulty concentrating, irritability, muscle tension, and sleep disturbances.

This condition is distinct from the other options. Chronic depression focuses more on pervasive low mood and loss of interest, while social phobia centers on the fear of social situations and potential embarrassment. Post-traumatic stress disorder involves re-experiencing trauma and heightened arousal rather than persistent worry across various areas of life. Therefore, the defining feature of generalized anxiety disorder is the chronic, pervasive worry that disrupts daily activities, making it the accurate answer in this context.