Research problem: the current situation reveals that most students are insufficient in physical activity: students spend most of their time passively at school and at home, i.e., sitting. According to the WHO (World Health Organization) recommended time, which students have to spend actively, an observable trend: a sedentary lifestyle among students occupies an increasing share not only of study days, but also of leisure time. This situation poses great health problems concerns of care professionals as there is a serious threat to the physical and mental health of pupils. Object of research: sedentary lifestyle of eighth grade students in Šiauliai city and Šiauliai district. The aim of the research - to investigate the eighth grade students...