Objectives: The aim of this research is to analyze the connection between headaches and habits/living environment among schoolchildren. Study design: HBSC is an international cross-sectional research that analyzes the students’ health behavior. Exploration protocol, international standard questionnaire, sample assignment procedure, data collection and national base preparation are defined internationally. Participants and methods: The research included 5741 students of the 5th and 7th grades of elementary school and the 1st grade of high school, i.e. 11, 13 and 15-year-old schoolchildren. The response was 85,9%. For the dissertation needs, the processing was done with the help of the SPSS statistical program. Results: The sample is equally represented by gender and age – 51,1% girls and 48,9% boys, 31,1% 11-year-olds, 35,1% 13-year-olds and 33,8% 15-year-olds. Headaches are not related to eating habits. They are related to physical activity and sedentary behavior so physical activity and computer games playing are protective factors, while watching the screen is a risky factor. They are positively associated with the consumption of psychoactive substances, cigarette smoking and marijuana consumption. They are linked to the family environment so emotional support and family help are a protective factor. They are connected with the peer environment as well. Thus, communicating with friends via instant messaging and peer violence are risky factors. Headaches are associated with the school environment, and pressure of school obligations is a risky factor, while the acceptance of a professor is a protective factor. Conclusion: It is necessary to improve existing preventive programs, reduce the time children spend in front of the screen and increase physical activity as well as to consider and examine the possibility of using computer games for preventive and therapeutic purposes. Also, it is advisable to limit the use of electronic media and to strengthen the creation of a positive atmosphere in school.