Chapter 12 Stress. Short Term Stress A response of the brain (Sympathetic) Immediate action is...
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Transcript of Chapter 12 Stress. Short Term Stress A response of the brain (Sympathetic) Immediate action is...
![Page 1: Chapter 12 Stress. Short Term Stress A response of the brain (Sympathetic) Immediate action is necessary Or anticipation that immediate action is.](https://reader035.fdocuments.us/reader035/viewer/2022062308/56649d445503460f94a201e8/html5/thumbnails/1.jpg)
Chapter 12
Stress
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Short Term Stress
• A response of the brain (Sympathetic)
• Immediate action is necessary
• Or anticipation that immediate action is necessary
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Acute Stress Response
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Changes is blood distribution
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Mobilization of sugar and fat
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Long Term Stress
• Prepare the body for continued action
• Increases the capacity of the system to make immediate stress responses– Replaces sugar in liver– Alters use of energy substrates by tissues other
than the brain– Limits immune damage
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Hypothalmic/Pituitary/adrenal axis:
Glucocorticoids
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Stress: Not all or nothing
Stress
Stress
Stress
Stress
Stress
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Stress Responses
• Development of increased capacity is dependent on the full response– Activation– Action– Long term stress to increase capacity
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Incomplete Response
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Variations in Stress Responses
• Cold Stress
• Starvation
• Learned Stress
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Stress and Disease
• Chronic alert: Preparation for action followed by inaction
• Problems– Immunosuppression– Fat mobilization– Insulin resistance
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Dealing with Stress
• Exercise
• Drugs