Upon perception of a stimulus as stressful. the human brain reacts with the activation of the hypothalamus-pituitary-adrenal (HPA) axis and the sympathetic nervous system (SNS). to mobilize energy resources to better cope with the stressor. Since the perception of the stressor is the initial stimulus. https://www.ealisboa.com/top-save-RE-DESIGNED-Strikketoy-oppbevaring-Prosjekt-27-Sort-100-Skinn-great-save/