Stress

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  • Stress
    • The body's response to stress
      • Increased heart rate
      • Increased breathing rate
      • Raised blood pressure
      • Release of adrenaline
      • Dilated pupils
      • Blood flow increases
    • The sympathetic medullary system
      • The body's response to acute stress
      • The hypothalamus activates the adrenal medulla
      • The adrenal medulla secretes adrenaline
      • Adrenaline  increases the heart rate as the body prepares for 'fight or flight'
      • The sympathetic nervous system is aroused and the parasym- pathetic is reduced
      • Once the 'threat' is over the parasym- pathetic branch calms the body down
    • The hypothalamic pituitary-adrenal system
      • The hypothalamus stimulates the pituitary gland to release ACTH
      • The adrenal cortex is activated
      • Corticosteroi-ds are released
      • A steady supply of energy is maintained
      • The immune system is supressed
      • The body's response to chronic stress
    • Friedman and Rosenman (1974)
      • Aimed to investigate the links between type A personality and the development of heart disease
      • 3000+ US men were interviewed and identified as type A or B
      • They were monitored for eight and a half years and their lifestyles and health levels were assessed
      • 257 of the original men developed heart disease
      • 70% of the sufferers were from the type A personality group
    • Friedman and Rosenman Evaluation
      • Longitudinal study - provides information about long term effects
      • What aspect of the personality type caused the heart disease was not specified
      • Natural experiment - cause and effect cannot be established
      • Unequal sample split
      • Individuals at risk of heart disease can be identified
    • Stress measurement
      • Social Readjustment Rating Scale (SRRS)
      • Daily Hassles
    • Stress related illnesses
      • Coronary heart disease
      • High blood pressure
      • Depression
      • Schizophrenia

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