Comorbidity is more common than not with anxiety disorders, meaning that most individuals who experience significant anxiety experience multiple different types of anxiety. Given this co-morbidity, it is not surprising that many risk factors are shared across anxiety disorders, or have the same underlying causes. There is a lot of research identifying risk factors for anxiety disorders, and this research suggests that both nature and nurture are very relevant. It is important to note that no single risk factor is definitive - many people may have a risk factor for a disorder, and not ever develop that disorder. However, it is helpful for research to identify risk factors and for people to be aware of them, as being aware of who might be at risk can potentially help people get support or assistance in order to prevent the development of a disorder.
People with generalized anxiety disorder (GAD) display excessive anxiety or worry, most days for at least 6 months, about a number of things such as personal health, work, social interactions, and everyday routine life circumstances. The fear and anxiety can cause significant problems in areas of their life, such as social interactions, school, and work.