 Nevertheless, one of the limitations of these studies is the large variation of age of their participants ranging from 18 to 85 years, despite a mean age of over 60 years, thus restricting the generalization of the findings to older patients. Moreover, these results derive from efficacy studies vs effectiveness studies designed to improve internal validity at the expense of external validity. Although these results demonstrate the potential efficacy vs effectiveness of non-pharmacological treatments to facilitate BZD withdrawal, very few elderly users receive such interventions due to lack of resources, expertise and time or simply due to their expensive implementation cost. Finally, to the investigators knowledge, no psychosocial intervention based on cognitive-behavioral therapy CBT and including other specific personal, psychological, and social components associated to aging, and targeting older people with different psychological problems i.e. not only insomnia but also anxiety or depression has been tested. Therefore, the researcher hypothesized that the Programme dAide au Succès du SEvrage PASSE-65 could be more suitable and effective to help older people in their BZD withdrawal management. 