Definition of Generalized anxiety disorder:

Generalized anxiety disorder (GAD) is a pattern of frequent, constant worry and anxiety over many different activities and events.

Causes, incidence, and risk factors:

Generalized anxiety disorder (GAD) is a common condition. The cause of GAD is not known, but biological and psychological factors play a role. Stressful life situations or behavior developed through learning may also contribute to GAD.

The disorder may start at any time in life, including childhood. Most people with the disorder report that they have been anxious for as long as they can remember. GAD occurs somewhat more often in women than in men.