The diploma thesis discusses the educational field of health education and teaching activities that teachers perform during the teaching of this discipline. The theoretical part contains basic characteristic of the health education and the importance of education in this field of study. Furthermore, the theoretical part of the thesis is focused on general didactic knowledge that teachers need for teaching activities and on the realization of the health education lessons itself. The practical part of the thesis presents the results of the survey. Quantitative and qualitative results demonstrate how teachers themselves perceive the importance of teaching the health education and how teachers are realizing this teaching themselves.