Conceptual issues and principles of safety
The central figure of the knowledge system that defines the concept "life safety" is man. In this sense, man is viewed as a phenomenon, a generalized concept. However, a person has his own character, features, habits, individual gene apparatus, health status, norms of behavior, etc.
Consequently, the notions of person's worth, his health and healthy lifestyle should be included in the scope of life safety concepts.Man exists under certain conditions that could have direct or indirect, instantaneous or time remote impact both on the activity of man and the products of this activity, and directly on his health and his offspring. That is, man exists in a certain habitat. One of the components of the environment is nature. The relationship between man and nature is very complex. On the one hand, nature creates conditions for man to live - it provides air, water, food, protection from external influences, and on the other hand, because of violent nature forces it destroys products of his activity, threatens, disables or even kill. But man was able to influence nature, not only for his good, but also for great harm. Thus, one of the aspects of human life is realized in the system "man - nature".
Man interacts with other people. Therefore there are social relationships potentially threatening the existence of man that are expressed in the complex system "man - society - nature."
Strong desire for self-development, knowledge, improvement of living conditions, expansion of one's own capabilities in all areas of human activity led to the emergence of sciences, technology, new substances and materials unknown to nature, technologies, industries, which in turn increased both the number and quality of threats towards man. Now the whole variety of conditions for safe living can be included into the system "man - society - nature - technogenic sphere".
So the system of scientific knowledge related to life safety is based on "man - environment" relationships. These relationships are realized in the form of hazards, their forecasting, avoidance, overcoming and elimination of consequences. Therefore, another key concept of life safety is danger.