Shift work with rotating night shifts negatively impacts human rhythms and might increase probability of developing multiple diseases. This form of working schedule can contribute to obesity, diabetes, and development of cardiovascular diseases, sleep deprivation and insomnia. Common secondary effect is fatigue and its various forms. This article offers a quantitative study comparing the level of fatigue among shift and fixed schedule working conditions. The degree of fatigue is classified in the scope of chosen characteristics: frequency, intensity, symptoms and it’s daily occurrence. The sample is composed of 57 workers participating in shift work and 57 having a fixed working schedule. Subjective interpretation was applied on analysing the questionnaires for identification of the degree of fatigue coefficient. The research findings are in accordance with previous studies and confirm shift work as a risk factor for physiological wellbeing of employees.
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