Stress can be said to
be any physical, mental or emotional factor that causes bodily or mental
tension (Whiteman, 2018). Stress is experienced in our everyday life and it is
the body’s own way of adjusting to sudden changes in its demand.
Stress could be from a
stimulus in the environment, like meeting deadlines, expectations after a job
done or may be internal such as from an illness or due to a medical procedure. Whichever way,
the body’s reactions remain the same irrespective of the stimulus. These
reactions originate so as to alert the person of a possible danger and to
mobilize the body’s response to the threat. Chronic exposure to the stress and
subsequent reactions produced as a result become unhealthy for the individual.
During stressful
situations, the hypothalamus in the brain causes the pituitary to release adrenocorticotropic
hormone. This hormone causes the release of cortisol, epinephrine and norepinephrine
from the adrenal glands. Cortisol causes less release of glucose from the liver
but stimulates glucose production from triacylglycerol and amino acids as
energy source for the body (Karriem-Norwood, 2017). Cortisol continually
produced suppresses immune reaction thereby reducing the general function of
the immune system to fight against infections.
In a diabetic patient, chronic stimulation of this substance can lead to
increased blood sugar further complicating their symptoms. Fat deposition in
the abdomen and vascular linings also increases the risk of obesity when there
is increased cortisol production.
Epinephrine and
norepinephrine on the other hand act on the sympathetic nervous system to increase
blood pressure under stressful conditions. Sustained or irregular changes in
heart rate cause abnormal changes in blood flow and blood pressure. These
changes cause increase in circulating serum cholesterol and triacylglycerol,
predisposing individuals to cardiovascular diseases like stroke and
hypertension and also to renal diseases such as
acute kidney injuries.
Stressful situations
increases the risk of having certain diseases as cited above when sustained
over a long period although stress in and of itself is not a disease condition.
Stressful situations although inevitable, must be managed so as to prevent
further disease complications and also improve the health and recovery rate in
ill
individuals.
REFERENCES
Mayo Clinic Staff, (2019), Mayo Clinic Guide to
Stress-free living, http://mayoclinic.org.
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