Slides in this set
Stress as a bodily response!
· The response that occurs when we think
we can't cope with the pressures in our
YES- deal with
Pressures Judgement- demand. Little/no
from do we stress.
environment. believe we
NO-fail to deal. Feel
We get stressed due to our judgements and if we think
we can't cope.…read more
Bodies response to stress
The cerebral cortex is a higher brain centre -> it evaluates
whether something is a stressor, this then sends a signal
to the hypothalamus and this triggers 2 processes.
Sympathomedullary pathway (ST) Pituitary-adrenal system (LT/counter
Anterior pituitary replace
energy that is
ACTH used in the
Adrenaline Noradrenalin Adrenal cortex response.
These affect the body in several ways...
-Blood pressure increases
-Muscles become tense
Fat Protein…read more
· Changes in the body can be
seen as having survival value.
· During evolution threats would
have been from predators or
· To respond we would have
required a `fight or flight'
In modern times stressors are
more psychological, therefore
long-term. So physical stress
responses are not really
Stress and Physical illness
· Han Selye -> stress as a 3 stage response
· He concluded that stress of daily injections caused the illnesses of
rats and that all animals and humans react to stressors through a 3
stage response called General Adaptation Syndrome.
· 1) ALARM STAGE- Our bodies first reaction to a stressor is to
increase arousal levels, so we're ready for `fight or flight'
· 2)RESISTANCE STAGE- If stressor remains for the long-term our
body adapts to it so we can cope normally.
· 3)EXHAUSTION STAGE- After a long term exposure to a stressor
our bodies will eventually be unable to continue with the situation.
This is supported by a lot of scientific research.
Neglects the fact that the bodies reaction to stress does vary.…read more
Stress and Physical illness-
Kiecolt-Glaser et al- stress and
· Brady et al- stress and the
development of ulcers. Method:- Independent measures
· Method:- Monkeys put into pairs design, a punch biopsy was used
and given electric shocks every to create a small wound on the
20 secs for 6hr sessions. arms of 13 carers of Alzheimer's
1monkey could push a lever to
disease. A control group of 13ppl
postpone shocks (executive) The
other couldn't also took part.
· Results:- The executive monkey' Results:- Wound healing took an
s were more likely to develop average of 9days compared to the
ulcers and die. control group.
· Conclusion:- This illness was not
due to the shock but the stress Conclusion:- LT stress impairs the
that the executives felt in trying effectiveness of the immune
to avoid them. This reduced the system to heal wounds.
immune systems ability to avoid Evaluation: The effects of the
carers could be due to poor diet
· Evaluation:- Ethical issues and
etc Also the study only used a
can't be generalised to humans.
small amount of people.…read more