Anxiety disorders are among the most common of all psychiatric disorders. The global current prevalence for anxiety disorders is 7.3 %, suggesting that 1 in 14 people around the world at any given time has an anxiety disorder and 1 in 9 (11.6 %) will experience an anxiety disorder in a given year (Baxter et al. 2013). Per year, the estimated cost (directly and indirectly) of anxiety disorders in the United States alone is over $42 billion (Greenberg et al. 1999). More than 50 % of these expenses are due to clinical care stemming from misdiagnosis, inadequate treatment, and emergency care (including psychiatric and nonpsychiatric hospitalization), the net effect of which is reduced productivity and absenteeism from the workplace (Lepine 2002).