[PHYSICAL ENVIRONMENTAL FACTORS IN THE ECOLOGY OF THE BRAIN]

On the base of the consideration and analysis of the performed for nearly half a century, numerous multifaceted experimental and field studies of biological action of an array of physical environmental factors and determination of their ecological and hygienic values there are presented are some thoughts on the theoretical understanding of possible mechanisms of the emergence of corresponding biological effects of such exposure. There are proposed methodological approaches to scientific substantiation for rules, regulations for the severity of physical factors in the environment, and there are presented examples of their legislative establishment and official use.