[The biorhythmological aspects of flight activities]

The quality of adaptative reactions is determined by evolutionary possibilities to speed the reconstruction of biological process. As a rule these are transmeridian and orbital flights which drastically change the biorythmological structure of functions of human organism due to alterations occurred in the so-called "time-sensors". The prolonged desynchronization of physiological functions caused by the external factors could become the primary reason of morbid status and low performance capability which thus will need preventive and corrective treatment.