Individual nonspecific reactions caused by various stressors (stressors) include physiological reactions and psychological reactions. The physiological reaction is sympathetic nerve excitement, increased secretion of pituitary and adrenal cortical hormones, increased blood sugar, increased blood pressure, increased heart rate and accelerated breathing. Psychological reaction includes emotional reaction, self-defense reaction and coping reaction. Stress response is the result of the interaction between stimulus and individual's own physical and mental characteristics, which is not only caused by stimulus, but also related to individual's understanding of stressors and individual's experience in dealing with stress events.
(1) The significance of a stimulus or psychosocial event to the relevant people depends on the individual's understanding and evaluation of it. Subjective factors affecting understanding and evaluation include personal past life experience, his beliefs, education level and personality.