4A Internal and external stressors that cause psychological stress responses Flashcards
Stressor
any event
that causes stress
or is perceived as a threat
and a challenge
to our ability to cope
Stress
A state of mental, emotional
or physiological tension
resulting from a stressor
its a psychobiological
process
Stress symptoms
Biological
- increase heart rate and muscle tension
Psychological
- (feelings and thoughts), fear, anxiety or excitment and anticipation
Internal stressor
originates inside
the body
can be psychological and biological
Examples of internal stressors
Psychological
- expectations
- feelings
- mindset
Biological
- pain
- illness
- sleep deprivation
External stressor
stressors originating outside
the body
can be environmental and sociocultural
Example of external stressors
Environmental
- loud noises
- extreme temperatures
Sociocultural
- daily hassels
- life events
- loss of significant relationships
- catastrophes
Acute stress
- stress response that occurs due to a
sudden threat
, lasts forshort time
- can be
beneficial
and help us deal with challanges
Examples of acute stress
- doing a performance
- bidding at an auction
- riding a roller coaster
- seeing a spider
- sitting an exam
- a car accident
Chronic stress
- stress that last for a
long time
- hypothalamus stimulates the pituitary gland to release ACTH (atrenocrotictopic hormone ACTH)
- generally more
detrimental
to our health asimmune suppresion
which thenincreases risk
of heart attack and strokes
Cortisol
- a
hormone
produced by the adrenal glands - released in response to stress
- regulates a lot of bodily processes, including metabolism,
Cortisol effects
- converts glucogen to glucose (more blood sugar)
- increase blood pressure, heart rate
- slower digestion, immune suppression
Adrenal glands
small, triangular-shaped glands on top of both kidneys. They produce hormones
that help regulate:
- metabolism
- immune system
- blood pressure
- response to stress
Where is cortisol produced
in the adrenal cortex
, which is the outer layer of each adrenal gland
Where is cortisol released
directly into the bloodstream
and transported throughout the body