Shift work has a great impact on our living habits which are a great contibutor to health. Changes in diet, alcohol consumption, smoking and physical activity can have a negative influence on our helath and lead to the development of chronic diseases. AIM: The aim of this survey is to find out how shift work of healthcare workers influences thir living habits. REPONDENTS AND METHODS: Thee were 150 nurses an d medical technicians from General hospital Pula involved in this survey. The questionnaire included 41 questions with the multiple choice answers. The questions were divided in four parts: smoking habits, alcohol consumption, dietary and physical activity habits as well as some general data. RESULTS: The results obtained show that statistically, there are no significant differences in BMI of the target group (p=0,7064). There is a significant difference among health workers who smoke (p=0,0340). As far as the frequency of alcohol consumption is concerned, there are no significant differences (p=0,685). Engaging in physical activities is not telated to work efficiency (p=0,340) whereas there is a great difference among helath workers in activities during workig hours (p<0,001). CONCLUSION:The survey of the impact of shift work of healthcare workers on living habits shows that BMI is not related to night shifts. Smoking habits are related to night shifts but alcohol consumption is not. Night shift is associated with physicalactivity in a way that those helathcare workers who work at night, walk more and therefore their physical activity is higher.