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Effect of examination stress on the alteration of blood pressure in young normotensives

BackgroundIt is known that stress alters mental status and biological processes. Acute mental stress due to stressful interviews increases blood pressure. ObjectiveTo assess the effect of chronic stress due to preparation of examination on cardiovascular function. MethodsThe blood pressure of young normotensive medical students (n=55) was measured using a mercury sphygmomanometer during a casual (less stressful) period and during the period of preparation for final examinations. Data were analysed by Student's t-test. ResultsIn the period of preparation for final examinations a significant rise in diastolic and mean blood pressure took place in both sexes (P<0.05). ConclusionsThe aforesaid result may be due to the vestibulo-sympathetic reflex elicited by head down and neck flexed posture (the conventional position of study) for a prolonged time.