Physiology of stress

Physiology of stress - o Physiology of stress Animal...

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o Physiology of stress Animal studies Baboons: psychosocial stress of social hierarchy o Dominant males vs. subordinate males (stressful lives: less food, fewer sexual partners, bullied) Dominant males have lower resting levels of cortisol but their cortisol levels rose more quickly in emergency o Stress and the immune system Immune system (IS) – protects body from antigens, foreign materials in the body, such as viruses and bacteria Important role of white blood cells (WBC) Stress fewer WBC’s IS suppression – can’t do its job as well Animal studies Subordinate baboons: fewer WBC’s than dominant Rats with implanted tumor cells and uncontrollable vs. controllable shocks o Rats with uncontrollable shocks (more stress) had suppressed WBC activity and fewer of the tumor cells were attacked Human studies – lower immune system functioning among caretakers of chronically ill family members Exam periods
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This note was uploaded on 11/27/2011 for the course PSYC 245 taught by Professor Snyder during the Spring '08 term at UNC.

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Physiology of stress - o Physiology of stress Animal...

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