What is generalized anxiety disorder?
Generalized Anxiety Disorder (GAD) involves chronic, excessive, and difficult-to-control worry about a wide range of topics — health, finances, work, relationships, minor matters — occurring more days than not for at least 6 months. It affects approximately 5.7% of US adults and is one of the most common anxiety disorders.
The worry in GAD is qualitatively different from normal concern. It is pervasive, difficult to dismiss, and often feels like it serves a protective purpose ("if I worry enough, I'll be prepared"). It is accompanied by physical symptoms: muscle tension, fatigue, concentration problems, irritability, and sleep disturbance.
Why GAD is often missed
GAD is frequently presented to primary care as physical complaints — muscle tension, headaches, GI problems, fatigue — without the anxiety being identified. Depression commonly co-occurs with GAD and may dominate the clinical picture. The chronic nature of GAD means many people simply accept it as "how I am" rather than recognizing it as a treatable condition.
Evidence-based treatment
CBT for GAD targets the worry process itself — identifying the function worry serves, challenging the belief that worry is useful or necessary, building tolerance for uncertainty, and reducing avoidance. Worry postponement — scheduling a specific "worry time" and deferring worries to that time — is a surprisingly effective component. SSRIs, SNRIs, and buspirone have evidence for GAD. Benzodiazepines provide rapid relief but are not recommended for long-term GAD management.
Intolerance of uncertainty is a core driver of GAD. Many people with GAD engage in reassurance-seeking, checking, and over-preparation specifically to reduce uncertainty. Treatment involves building the ability to function and feel okay in the face of uncertainty — not eliminating uncertainty itself.