Stress & Health Flashcards
Health psychology
Says the mind plays a key role in the health of the body.
Tries to bridge the gap between service providers trained only in psychology or physical medicine.
Good health isn’t just the absence of illness and disease, it depends on having a good environment and actions.
Biopsychosocial model
Physical health is a function of biological, psychological, and social factors
Stress
Physical response to an environmental factor that’s taxing or seen as beyond your capabilities. Can include catastrophes, any major (positive or negative) life events, or daily hassles.
Under what 3 cognitive conditions is a person most likely to feel stressed?
- There’s uncertainty.
- You feel like you lack control.
- You feel like others might think of you negatively.
Stress appraisal
Not everyone responds the same to stress. Stress appraisal is the psychological interpretation of what an event means.
Perceived stress
When your appraisal of what the situation demands surpasses your secondary appraisal of what you’re capable of.
What are the 3 types of event that can lead to stress?
- Catastrophic event: can be wide-scale like a tsunami or personal like being sexually assaulted.
- Major life events: positive or negative, anything that causes a reorganization of how you live your life. Disrupts social safety nets.
- Daily hassles: traffic, emails, etc–BP rises across a day when people experience these daily hassles. Has a cumulative effect–health symptoms better predicted by daily hassles than major negative life events.
What percentage of people who have experienced childhood sexual abuse report no long term increase in mental health symptoms?
20-50%
What’s Selye’s general adaptation syndrome and how did he find out about it?
Selye injected rats with parts of ovaries and noticed they had immunological symptoms. Decided to do double-blind study with a control group who were injected but not with parts of ovaries. Control group had same response–realized it was stress.
Described 3 stages of stress:
• Initial alarm
• Prolonged resistance to the stress
• Exhaustion if the stressor doesn’t end before your physical ability to cope is depleted, which lessens immune response.
What’s the SAM axis?
Sympathetic-adreno-medullary
Fight or flight
Ephinephrine and norephinephrine
Cardiovascular
What’s the HPA axis? (4)
Helps fend off possible infection.
○ Cytokines-inflammation
○ Hypothalamus and pituitary produce cortisol
○ Increases blood sugar and suppresses immune system
Allostatic load
Physiological stress response being activated all the time leads to wear and tear on bodily tissues and internal organs.
How does chronic stress increase likelihood of cardiovascular disease?
increase in blood pressure -> build-up of plaque on artery walls
What’s the role of the parasympathetic nervous system in stress? When does it fail?
Should ideally bring body back to normal conditions (homeostasis) after stressful event.
However, chronic stress impairs the body’s ability to activate the PNS. The body becomes inflexible to coping with new challenges.
How does chronic stress lead to a weakened immune system?
In an acute episode, HPA response enlists cytokines to helps fight off infection by inducing fever and inflammation to kill invading cells.
But when it’s activated chronically, it makes it harder for your body to recruit and regulate immune system responses, which increases inflammation and makes it take longer for you to heal.
What did Sapolsky’s zebras tell him?
“Why zebras don’t get ulcers”–human body developed to deal with acute stress but is not adapted to sustain stress over a lot time, or the types of stressors in modern societies, like social situations
Why do people eat to cope with stress?
○ Activates reward system
○ Focuses attention on food instead of bad stuff
○ Evolutionary adaptation to store food in times of stress
In what way do stimulants ‘help’ with stress?
Stimulants can act as short-term emotional inhibitors.
How do opiates ‘help’ with stress?
Emotional pain activates same parts of brain as physical pain
Alcohol myopia (2)
Focus of attention narrows
Impulse control impaired
Why are stressed people more likely to take risks?
Suppresses pre-frontal cortex.