HEED-110 Lecture Notes - Lecture 2: Canadian Mental Health Association, Resistance 3, Endorphins
3 Feb 2017
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Document Summary
Normality is not a key component of psychological health. According to the canadian mental health association, about 6 million canadians will have a diagnosable psychological disorder at some point. Depression is a disorder strongly linked to brain chemistry. Cortisol & epinephrine chemical messages a& actions of sympathetic nerves cause the release of key hormones. The liver releases extra sugar into the bloodstream to boost energy. The brain release endorphins- chemicals that can inhibit or block sensations of pain. Heart and respiration rates accelerate to speed oxygen through the body. Fight of flight reaction: a defence reaction that prepares an individual for conflict or escape by triggering hormonal, cardiovascular, metabolic, and other changes. Today the fight-or-flight response is recognized as part of the first stage of hans selye"s general adaptation syndrome, (gas) a theory describing the stress response. Gas- general adaption syndrome: a pattern of stress responses consisting of three stages: alarm, resistance, exhaustion. Physical stress reactions promote homeostasis (resistance stage)
