Features of the reaction of the autonomic nervous, cardiovascular and endocrine systems to learning loads during the acute period of primary school adjustment

Introduction. The problem of first-graders’ adjustment to schooling is relevant, since the success of further education depends on its course. In the available literature, there are practically no results of comprehensive studies revealing the reactions of stress-implementing systems (autonomic nervous, cardiovascular and endocrine) of the body of first-graders during acute adaptation to learning loads. The purpose of the study is to identify the features of the reaction of the autonomic nervous, cardiovascular and endocrine systems to learning loads during the acute period of adaptation to school.