Psych 202 - Week 3 Lecture
Psych 202 - Week 3 Lecture PSY 202
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This 3 page Class Notes was uploaded by Janiel Celeena Santos on Saturday October 17, 2015. The Class Notes belongs to PSY 202 at University of Oregon taught by Measelle J in Fall 2015. Since its upload, it has received 19 views. For similar materials see Mind and Society >2 in Psychlogy at University of Oregon.
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Date Created: 10/17/15
Psych 202 October 12 2015 Stress and Health How Stress Gets Built Into the Body Immune system Disruption Genetic Disruption Metabolic Disruption Cardiovascular Disruption Neuroendocrine Disruption Stress The physiological response to the perceived environmental challenge hormonal neurological and immune defenses Stressors challenges of the maintenance of a balanced physiological state ie homeostasis Homeostasis balanced blood pH temperature blood glucose and blood oxygen levels Th reePa rt Resnonse 1 Rapid response system The sympatheticadrenalmedullary SAM axis a Adrenaline Epinephrine released fast acting in the body b Physiological effects mobilizes energy increases blood pressure and heart rate increases respiration and increased endorphins 2 Delayed and Sustained Response HypothalamicPituitaryAdrenal HPA Axis a HPA activated in minutes i Release of cortisol main human stress hormone b Physiological Effects i Boost secretion of adrenaline ii Increases blood glucose iii Suppresses nonessential functions eg growth digestion reproduction iv Relied on daily 3 Post Stress Recovery Parasympathetic system a Supports down regulation recovery and return to homeostasis Fight or Flight resoonse The stress response is an automatic physiological defense against an acute threat encountering a mugger in a dark alley or being chased by a on highly adaptive effects the CNS activity and hormonal responses How Does the Body TYPICALLY React to Stress Hans Selye Identi ed the three stages of how the body responds to stress General Adaption Svndrome 1 Phase 1 Stressor Occurs Alarm Reaction 2 Phase 2 Resistance cope 3 Phase 3 Exhaustion When Adaptive becomes Maladaptive Stress response adaptive but when used too often can lead to breakdown 0 Acute stress sudden and severe vs chronic stress frequent and repeated 0 Longterm repeated activation of the stress response can lead to damage and negative health consequences Allostatic Load the price the body will pay over long periods of time for adapting to challenges and stress Stress and Health lntimatelv linked Growth stunting Major depression Sleep disruption Delayed wound healing Type 2 diabetes Cardiovascular disease Increased miscarriages Psychological dimensions of stress Humans and other primates experience psychological stressors related to anticipated challenges 0 Often chroniclonglasting 0 Language allows us to communicate fears and worries to others 0 Memory allows us to recall and relive 0 Chronic anxiety about the future requires constant vigilance Social Dimension of Stress Social situations 0 Martial con ict caring for a sick loved one 0 Importance of social relationships 0 Brains evolved to enable us to understand others feelings communicate in sophisticated ways and negotiate social coalitions o Subjective feelings incredibly useful but can have enormous costs 0 Lower socioeconomic classes had lower health outcomes Social Inequality stress and health in the US 0 Lower SES and Greater Psychosocial stress 0 Unpredictability little control less social support lack of workplace autonomy 0 Feeling Poor more stress with greater income inequality 0 Extreme health gradient with SES 0 US income distribution Most unequal of developed nations 40 of wealth in the nation controlled by 1 Low Life expectancy rate n 29 in the world