STRESS Flashcards
how did Selye define stress?
the non-specific response of the body to any demand
define distress
a negative stress response typically associated with physiological and negative emotions
define Eustress
a positive stress response that motivates and enhances functioning
define what is meant by a stressor
sources of stress from internal or external factors
what are the 4 types of stressors
- environmental
- social
- psychological
- cultural
what is an environmental stressor
arise from the conditions and physical surroundings of an individual
eg. noise, pollution, temperature
what is a social stressor
stem from relationships and interactions with society
eg, peer pressure, pressure to be accepted by others, conflicts in relationships
what is a psychological stressor
caused by emotional and cognitive factors
ex. buying a house, pressure at work and relationship changes
what is a cultural stressor
emerge from cultural identity, values and cultural norms
eg. discrimination due to cultural beliefs and practises
what are the 3 characteristics of stressors
- Nature
- Duration
- strength
what are the two types of duration of stressors
Short term (acute)
Long term (chronic)
what is the role of cortisol? and what is a negative impact it has
increases pain tolerance, providing continual blood sugar
decreases immune performance, impairs cognitive ability
what is the role of adrenaline?
increases heart rate and supports the conversion of glycogen —> glucose
what is the role of noradrenaline
constricts blood vessels to increase blood pressure
who invented GAS and what does it stand for?
SLEYE (1936-1983)
General Adaptation Syndrome
what was Selye’s theory when inventing GAS
stress is not simply an environmental stressor but a set of processes that act as a response
STRESS AS A RESPONSE
what are the 3 steps in the Alarm stage
- Threat is detected by amygdala and sent to the hypothalamus to initiate the Sympathetic Nervous System
- Fight and Flight response initiated
- Adrenal Gland is signalled to release cortisol, adrenaline and noradrenaline
what is the purpose of the resistance stage and what is its role
Repairing the body
Reduces activity of the Sympathetic Nervous System by initiating Parasympathetic Nervous System
(rest and digest)
calms body back to homeostasis
when would an individual reach the exhaustion stage?
when the body cannot overcome a prolonged period of stress
what occurs during the exhaustion stage and what does this cause
body’s physical and mental reserves deplete limiting the effectiveness of the adrenal gland
causing: drop in blood sugar levels, and negatively impacting physical health