HLSC 1F90 Lecture Notes - Lecture 19: The Strongest, Parasympathetic Nervous System, Sympathetic Nervous System
18 Apr 2016
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An externally imposed factor that makes demands on the individual"s mind or body; the mental and physical responses of the mind and body to these demands. The individual"s own thoughts and percepions determine whether a demand/situaion/event is stressful: everyone experiences it diferently. I. e. anxiety about exam, or relief of geing it done. The same demand/situaion/event may evoke diferent levels of stress for diferent individuals. Physical, social, or mental demands/situaions/events that evoke stress by forcing the individual to respond and adapt. Stressors can be posiive or negaive: eustress: posiive stress. Staring a new job, going on vacaion: distress: negaive stress. Your body will react the same way regardless of whether the stressors are posiive or negaive: i. e. Needing a vacaion from your vacaion going under physiological stress. We start in a state of homeostasis. A stressor disrupts (alarm), and as a response, our stress levels increase: can cope and return to homeostasis (resistance, inability to reduce stress leads to exhausion stage.
