Presented are relationships between population health levels and ecolo
gical system components, which are subject to the influence of global
and impact factors action, A special task is put forward for health an
d sanitary authorities, scientists to locate and analyze couses, formi
ng ethnology and pathogenesis of different types of illnesses. It is n
oted, that among such couses the way of living, observance of hygienic
regime and nutrition levels play very important role.