In the article, normal and pathological (socio-psychopathological) forms of mass (collective) consciousness are considered from the point of view of the mental health of society. It is noted that the post-informational (supersaturated with information, a significant part of which are «simulacra») society plays the role of public distress and deforms social norms and values. This circumstance contributes to the «anomie» (the absence of norms) as a variety of social pathology and as a whole is a complex of challenges addressed to the ability of modern people to successful psychological adaptation. The difficulty of the process of rational assimilation of established ideo-behavioral norms and patterns gives an impetus to the development of irrational phenomena in society - mythological mechanisms of perception of reality and the «social paranoia». The latter is fraught with two dangerous socio-psychological pathologies that have a psychiatric aspect: 1) general increase in the anxiety that promotes the spread of anxiety and depressive disorders; 2) strengthening of religion-obscurantist tendencies in the public consciousness, which hinder the effective treatment of mentally ill patients.