HLSC 1F90 Lecture Notes - Lecture 7: Inflectional Phrase, Allostatic Load, Stress Management
1 Dec 2016
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Document Summary
Understanding and managing stress, what is stress, general physiological & emotional state that happens due to the stress response. Individual"s own thoughts & perceptions determine whether a demand, situation, or event is stressful. Can be + or : positive stress- eustress, negative stress- distress. Activates the autonomic nervous system- part of cns that regulates body processes; comprised of sympathetic (upregulates frm homeostasis) and parasympathetic (downregulates back to homeostasis) Immediate rxn- hypothalamus stimulates adrenal glands to release epinephrine (adrenaline) Epinephrine- higher heart rate, more blood v, faster/deeper respiration, more muscular strenght, better visual & auditory acuity. Longer term rxn- hypothalamus stimulates pituitary gland to release adrenocorticotrophic hormone (acth); triggers release of cortisol. Cortisol- release of stored nutrients (to meet bodily demands); sustained release of endorphins (to deal w/ pain) Resistance stage- charac by adaptations to effic cope w/ stressor; ideally adaptation occurs, stressful situation is resolved, homeostasis regained.
