Environment: Basics Flashcards
What are behavioural factors that have an impact on stress
Avoidance, fidgeting, increased aggression, silence, nail biting
What are the social factors that impact stress
Avoidance of people, isolation, needing to be with people
What are the cognitive factors that impact stress
Decreased concentration, decreased memory, decreased focus
Why is noise stressful and what do research finings show us about the impact it has on our biological responses
- Noise is stressful because you cant control it, turn it off or down. Annoyance sounds that are persistent and loud noises.
- Glass and Singer = loudness is only partly stressful but unpredictable noise that you cant control is the bigger stressor
Why is temperature stressful and what do research findings show us about the impact it has on our biological responses
- increased temperature can be more stressful because you may feel suffocated, panicked and impatient as well as fidgeting and sweating which are signs of stress anyway because you cant cool down and are uncomfortable
- increased aggression and become more impatient. Increased heat = increased hostility. Kendrick and Macfarlane = road rage aggression increases during higher temperature
Why is crowding stressful and what do research findings show us about the impact it has on our biological responses
- no control over how you can move, no personal space, feeling of vulnerability and uncomfortable
- Christian at al = in animal studies, some animals lose weight and died
What is the impact of stress on the musculoskeletal system
-muscles tense and may trigger migraines for long term tension
What is the impact of stress on the respiratory system
-breathing harder and faster, cant get enough oxygen and may have hyperventilation
What is the impact of stress on the cardiovascular system
- acute short term = increased heart rate and stronger contractions of heart muscle, elevated blood pressure
- constant stress = elevated levels of stress hormones and blood pressure increase risk of heart attack
What is the impact of stress on the endocrine system
-body releases cortisol and epinephrine which triggers the liver to release more glucose for fight or flight response
What is the impact of stress on the gastrointestinal system
- eat more/ less extremes, heartburn/acid reflux
- stomach muscles contract = nausea and stomach acid = further problems vomiting
What is the impact of stress on the nervous system
- causes blood vessels to dilate, this causes levels of alertness to increase
- some areas of the brain will reduce in activity
How do self reports measure stress and what are the strengths and weaknesses of these
-they identify what is causing stress and how stressed an individual is
+qualitative data = they can tell you directly if/ they are stressed
-not always going to get accurate answers of why some maybe stressed - invalid
How do ECG’s measure stress and what are the strengths and weaknesses of this
-They measure heart rate (if increases)
+quick and easy way to measure someones heart rate
+accurate and more objective
-could show increase in heart rate because of a different factor not just stress. –> cause and effect
How do Blood tests measure stress and what are the strengths and weaknesses of this
-they measure stress hormone (cortisol and glucose)
+very accurate and scientific/objective
- not able to easily measure own blood at comfort of own home
- time consuming and have to be analysed
- would need a baseline comparison
- may cause stress if you don’t like needles and invasive
How does saliva measure stress and what are the strengths and weaknesses of this
-measuring levels of cortisol
+easy to collect for testing and quick
+very objective and no bias
-still need to analyse and therefore will take longer
How does blood pressure measure stress and what are the strengths and weaknesses of this
-measuring blood pressure (if it increases)
+can track and measure own blood pressure in self test
- could show increase in blood pressure because of a different factor not just stress –> cause and effect
- hard to interpret on your own = could become subjective
What is a circadian rhythm
A 24hr biological process that tells our bodies when to sleep, rise and eat.
What is the suprachiasmatic nucleus
The bodys master clock that controls the production of melatonin
What is melatonin
Makes you feel tired - activates the sleep cycle
This is activated about 2 hrs before bedtime, as long as there is dim light, allowing us to create a regular cycle of bedtime