Module 2 - Fight or Flight: or Frenzy? Flashcards
What is stress defined as?
- A stimulus or change in the environment
What causes a stimulus or change in the environment?
- Stressors
What are the 2 types of stressors?
- Acute stressors
- Chronic Stressors
Describe Acute Stressors. Give examples.
Limited
- Running late, late, accident
Describe chronic stressors. examples?
Prolonged, repeated
- Job strain, poverty, major life events, daily hassles
What is the Major life event scale also known as?
- Social Readjustment Rating Scale
What is assumed to be stressful?
- Change + or -
What are assigned life change unit score? what is it based on?
Items
- Severity
What has been shown based on the major life events scale?
Correlations with incidence of:
- Heart Attack
- Broken Bones
- Diabetes
- MS
- TB
- Pregnancy complications
- Decline in academic performance
What are some examples of items on the Major life events scale and their unit scores?
- Death of a spouse = 100
- Jail Term = 63
- Marriage = 50
- Death of a Friend = 37
- Vacation = 13
What causes an increased likelihood of contracting cold virus?
- More stressful life events
What are daily hassles?
- Day-to-day unpleasant or potentially harmful events
How are daily hassles ideally measured?
- As they unfold, using daily process methods
What are hassles and uplifts more strongly associated with than life events?
- Health
What can stress be defined as?
- Stimulus
- Response
Describe stress as a response
Person’s physiological response
- (fight-or-flight; reactivity)
Person’s psychological response
- Thoughts/emotions (nervousness)
Describe what the physiological changes from the fight-or-flight response do (3).
- Mobilization
- Increased Energy
- Increased Focus
List the physiological changes that occur from the fight-or-flight response (11)
Increased
- breathing
- HR
- BP
- Muscle tension
- Blood Glucose
- Sweating
Pupils Dilate
Digestion slows
Mouth Dry
Bladder Relaxes
Hands/Feet Cold
What does the adrenal gland release?
- Epinephrine (adrenaline)
- Norepinephrine (noradrenaline)
What are epinephrine and norepinephrine?
Catecholamines
- Hormones / neurotansmitters
What do epinephrine and norepinephrine do?
Regulate:
- HR
- Metabolism
- Respiration
- Oxygen to the brain and muscles
What is the Stress Hormone?
- Cortisol
What does cortisol complement?
- Sympathetic Nervous System
What does cortisol do?
Increase
- BP
- Blood Glucose
- Brain use of glucose
Suppresses
- Nonessential systems
Reduces
- Inflammation
Assists
- Return to homeostasis