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chapter1 - Chapter 1 The Nature of Stress “I cannot and...

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Unformatted text preview: Chapter 1 The Nature of Stress “I cannot and should not be cured of my stress, but merely taught to enjoy it.” —Hans Selye The association between chronic stress and a host of health-related issues is now undisputed. Figure 1.1. Leading Causes of Death in America Definitions of Stress • Stress is any change you encounter • Stress is wear and tear on the body • Stress is the inability to cope with problems • Stress is the loss of emotional control • Stress is the absence of inner peace Definitions of Stress Stress is a perceived threat (real or imagined) to our mind, body, spirit, or emotions. The Fight-or-Flight Response Walter Cannon- Body is made ready to “fight” a threat or to “flee” from a threat The Stress Response Stage 1: Stimuli is sent to the brain. Stage 2: Brain deciphers stimuli: THREAT! Nervous system is activated for survival. Stage 3: Body stays activated until threat is over. Stage 4: Body returns to homeostasis (physiological calmness, once the threat is gone). by Walter Cannon The Stress Response Physical Symptoms • Increased blood pressure • Increased heart rate • Increased vasodilation to periphery • Increased serum glucose for energy metabolism...
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This note was uploaded on 06/08/2011 for the course HSC 4104 taught by Professor Kellyrhoads during the Summer '11 term at FAU.

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chapter1 - Chapter 1 The Nature of Stress “I cannot and...

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