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  • Title: [Work, stress and cardiovascular diseases].
    Author: Fischer JE.
    Journal: Ther Umsch; 2003 Nov; 60(11):689-96. PubMed ID: 14669707.
    Abstract:
    Classical risk factors such as smoking, hypertension or elevated plasma levels of cholesterol account only for part of the variance in the probability of cardiovascular disease. Work related psychosocial factors such as high job demands, low decision latitude or lack of social support often pertain during extended periods. Such work related stressors may modulate biological risk factors (e.g. by increasing the risk of hypertension) or may elicit adverse health behaviour (increased tobacco consumption). Several longitudinal cohort studies indeed support the notion of an association between work related stressors and the risk of cardiovascular disease. However, the exact biological mechanisms conferring this risk remain in part elusive. The general stress model of allostasis and allostatic load may allow studying possible pathways in more detail and within a common conceptual framework. Allostasis refers to the often useful acute stress reaction that prepares the organism for flight or fight threatening situations. Allostatic load summarizes the wear and tear inflicted upon the organism after repeated or dysregulated allostatic efforts. The framework of allostasis and allostatic load permits to investigate the direct effect of work related stressors on the primary stress reaction (reduced vagal tone, increased sympathetic tone and increased activity of the hypothalamic-pituitary-adrenal axis) as well as the effect on biological process, which are regulated by the acute stress reaction. Longitudinal studies have shown an inverse association between a score operationalizing allostatic load by means of 10 biological measures and functional status/mortality. These studies in elderly individuals remain to be replicated using the same framework for working age populations.
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