[Medical and biological approaches to the problem of biosphere protection: methodological aspects].

This article discusses a principle possibility of extrapolating medical knowledge in prevention and treatment of human diseases of various nature, including those caused by external anthropogenic impacts, on protecting the environment and Biosphere, particularly the methodological aspects of the problem. It is based on an assumption of a principle similarity of processes underlying the existence and development of a human organism, the Biosphere and their major subsystems.