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As ageing is associated with immunological changes,
the effects of stress and age are interlinked where a deregulation
of the immune function can have a significant impact on physical
health. |
On the other hand stess can both enhance and increase the effects of aging, with
older adults often showing greater immunological impairment to stress than younger
adults.
Therefore, a good immune response is essential to our good health. In the same way
immunological alterations and disturbances can influence the progression and
severity of a variety of disorders and diseases, including stress related
disorders.
Also stressful experiences very early in life can alter the responsiveness of
the nervous system and immune system. It is possible that prenatal or early life
stress may increase the likelihood of altered immune responses to stress in late
life.
One such alteration to the immune system includes a decrease in the ability of
white blood cells (immune cells) to carry out their key functions.
One great example is temporary stress as seen in students during “examination
stress”. This has been seen to slow down wound healing.
Children of mothers who are routinely stressed during their pregnancy show decrease
in immune function compared to children of undisturbed pregnancies.
Similarly young children who experience abuse or neglect show abnormal cortisol
levels indicative of a dysregulated stress response.
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Cortisol is a hormone secreted by the adrenal glands and involved in glucose
metabolism, blood pressure regulation, maintenance of insulin release, suppression
of inflammatory responses.
Cortisol is elevated following several stress disorders. Several stressful
experiences can cause in areas of the brain involved in memory an “imprinting”
during fetal development and early life can alter the responsiveness of the
endocrine, immune, and central nervous systems for many years.
An understanding of such interlinked effects of stress and age is important to
understand and to determine the mechanisms involved, so that we can develop
effective interventions in early and late life.
The statements in this article are not intended to
diagnose, treat and cure or prevent disease please consult your health care
physician before discontinuing medication or introducing herbs into your
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