Introduction. An addiction is defined as a mental and physical state for a given organism, which is influenced by a specific factor. Addictions are chronic in nature with a tendency to relapse and build pathologies from a mental, physical and social perspective. Addictions are becoming a growing problem of modern man.
The aim of the study. The aim of the work was to present a short outline of the understanding of addictions, attention was paid to the mental and behavioural level of addictions, and the types of addictions and factors causing them were discussed.
Selection of material. The search was conducted in the Scopus database for the period 1998-2019, using the terms mental and behavioural plane of addiction, types of addiction, factors caus-ing addictions. From the literature found in the Google Scholar database, studies were selected which, according to the authors, would be most useful in the preparation of this study.
Conclusions. Nowadays, the frequency of behavioural addictions of a selective nature, not associated with temporary or permanent morphological impairment, is growing very dynamically, which causes that quite often behavioural addictions are treated as something frivolous and not classified for treatment.