[The problem of adaptation to space flight].

The presented paper is the review of the theoretical aspects of adaptation as applied to the factors of space flight. The aspects which are used in the professional selection and in the training of cosmonauts are discussed. The theoretical basis of the methods for diagnostics of functional states of the body and for increase of the reserve abilities of cosmonauts is studied. The authors suggest the working of the problem of adaptation to more complicated space flights including interplanetary travels is in sight. The authors conclude that at the present creation of the general conception of adaptation to space flight as to the complex of extreme factors is necessary.