PSYC 2000 Chapter : OutlineStress
Document Summary
The physiological and psychological response to conditions that threaten or challenge. Can be caused by negative or positive events (eustress)! How you interpret the stressor will determine your stress response. Brain activates the sympathetic nervous system (fight or flight system) and inhibits the parasympathetic nervous system (the system that gets you to relax again) Neurotransmitters (such as norepinephrine) and hormones are released. Prolonged stress can negatively affect immune system functioning. Stress triggers the same kind of response as infections. In the short term, stress can have positive effects on the immune system. However, chronic stress wears down the body"s responses. Alarm: a threat mobilizes body resistance to stress. Exhaustion: the organism"s resources for dealing with stress are exhausted stress resistance drops off: http://www. stress. org/about/hans-selye-birth-of-stress/ http://brainconnection. brainhq. com/2013/04/05/hans-selye-the-discovery-of-stress/ Body is trying to deal with stressor, so energy output is increased. Because hr & respiration rates increase, so does blood flow.
