Content of hypophysal and steroid hormones during menstrual cycle in women with various degrees of body mass deficiency on the background of excessive physical loading has been studied. Trustworthy reduction of ovary and hypophisis hormones during menstrual cycle and increase of cortisole level have been revealed.
It has been concluded that body mass deficiency, caused by excessive physical loading leads to disturbances of hormone homeostasis, which gravity correlates with the degree of body mass deficiency.