Abstract : Anxiety disorders are very common in the general population. They are associated with a considerable personal suffering and an important economic burden. Comorbidity with mental disorder and physical illness is frequent. The treatment includes pharmacological and psychotherapeutical interventions that have been well validated in scientific studies. Unfortunately, many patients remain undiagnosed and undertreated. Moreover, the efficacy and tolerability of the available pharmacological and psychological treatments are disappointing. That is the reason why prevention has to be a real priority for the medical community and for our authorities.