 Long-term use of BZD by older people is a complex phenomenon that can be explained by several personal, psychological, and social factors interacting with each other. Systemic model of BZD consumption in late-life implies the following five elements which contribute to initiate and maintain BZD taking: 1 history i.e. autonomy loss, stress, disease apparition, etc.; 2 the prescription process; 3 personal dispositions i.e. sexe, age, education, loneliness, etc.; 4 sociocultural factors i.e. positive attitude of their family or their physician toward BZD use; and 5 cognitive strategies e.g. trivialization of concerns about the drugs, etc.. 