THE MAGNETIC STORM AS A STRESS FACTOR

The functional characteristics variations during the magnetic storms w ere observed in both the healthy humans and in patients with cardio-va scular diseases as well as in cosmonauts at SOYUZ spacecraft and MIR s tation. These characteristics revealed a nonspecific adaptive stress r eaction, which should be accompanied by the variations in the stress-h ormone production rate. The neurohumoral regulation of the organism fu nctions during the geomagnetic storms in a group of patients with card io-vascular pathology and in a control group of healthy individuals we re studied. The magnetic storm effect characterised of both the sick a nd healthy examines was the violated ratio of glucocorticoids and mine ralocorticoids, namely increase of cortisone secretion (adrenal cortex hormone), as well as some tendency to the activation of sympathoadren al system. Our investigations revealed also a suppressed production of melatonin (the pineal gland hormone) during the geomagnetic storm. Th ese results are not in contradictions with the functional characterist ics violation by the magnetic storms and correspond to the existance o f adaptive stress reaction of the human organism to the geomagnetic fi eld disturbunces.