The main goal of the health promotion curriculum in the environmental field is to contribute to the conviction that it does not only concern the relationships of organisms to the environment but also the issues of influence of physical and social environment on humans. Every negative change in the environment limits the quality of life and thus nature preservation, which is an integral part of ecological/environmental education, becomes imperative. If the ecological/environmental education is to contribute to reestablishing of the balance between humans and the nature, it is suitable to explore the attitudes of pupils to their own health in the context of nature preservation. In the paper authors present results of an investigation which attempt to illustrate that knowledge and respect for the balance of the environment and humans can influence, condition and stabilise the positive health indicators.