Introduction. Depressions are among the civilization diseases of the 21st century and are disorders in the human psyche. It comes in various age groups and affects children, adolescents, women, men and the elderly. In Poland, over 1.5 million people struggle with depression, and at present, during the Covid-19 pandemic, the incidence has increased to over 3 million.Aim. The aim of the study was to evaluate the factors influencing the occurrence of depression.Material and Methods. The study included 200 people — nurses from treatment and conservative departments. The prevalence of depressive disorders was assessed using the Depression Measurement Questionnaire, which consists of 75 statements — terms referring to the approach to life and eve...