Getting a good night's sleep seems a panacea for improving mood and cognition. These subjective impressions are supported by countless studies exploring the impacts of sleep (and sleep loss) on mental health, metabolism, and immune function. Similarly, being "out of phase" with local time, commonly experienced by shift workers of jet-lagged air travelers, demonstrates that there are both neural and physiologic effects of internal circadian (daily) time being misaligned with external environmental time. This article reviews these areas contextualized using the model of allostasis and allostatic load emphasizing the impact of this "wear and tear" on the brain and body.
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http://dx.doi.org/10.1016/j.jsmc.2022.03.005 | DOI Listing |
Stress Health
February 2025
Facultad HM de Ciencias de la Salud de la Universidad Camilo José Cela, Villafranca del Castillo, Spain.
It would be highly valuable to possess a tool for evaluating disease progression and identifying patients at risk of experiencing a more severe clinical course and potentially worse outcomes. The concept of allostatic load, which represents the overall strain on the body from repeated stress responses, has been recognized as a precursor to the development of chronic illnesses. It functions as a cumulative measure of the body's capacity to adapt to stress.
View Article and Find Full Text PDFPLoS One
December 2024
Guangzhou Development Research Institute, Guangzhou University, Guangzhou, China.
The female advantage in life expectancy sits uneasily with female disadvantage in health and well-being in later life compared to their male counterparts. This health disparity has been suggested to rest on sex difference in allostatic load (AL). We aim to delineate the sex-specific age trajectories of AL among midlife and older adults in China and to interpret the contradiction between the female advantage in life expectancy and their disadvantage in health in later life from the perspective of physiological dysregulation.
View Article and Find Full Text PDFAppl Psychol Health Well Being
February 2025
Institute of Developmental Psychology, Beijing Normal University, Beijing, China.
This daily diary study drew on the allostatic load model to examine the predictive effect of COVID-19 stressful experiences (CSE) on somatic symptoms and anxious mood, as well as applying the biological sensitivity to context model to explore whether diurnal cortisol moderated the above associations. A total of 101 Chinese college students retrospectively reported CSE in October 2020, followed by 5-day diary reports on somatic symptoms and anxious mood in November 2020, with salivary cortisol collected on Days 2 to 4 to measure cortisol awakening response (CAR), diurnal cortisol slope (DCS), and daily cortisol output (area under the curve with respect to ground, AUC). Results of multilevel models showed that greater CSE predicted more somatic symptoms but not anxious mood, which was only observed at flatter CAR, flatter DCS, or low AUC.
View Article and Find Full Text PDFStroke
January 2025
Department of Neurology, LAC+USC Medical Center, Los Angeles, CA (A.T.).
Background: Allostatic load index (ALI) is often utilized to quantify the physiological response to stress. This study assesses the relationship between ALI and its impact on all-cause, cardiovascular, and stroke mortality in individuals with a self-reported history of stroke and within the general National Health and Nutritional Examination Survey sampled population.
Methods: Using data from the National Health and Nutritional Examination Survey (III, 1988-1994) and the 2015 Linked Mortality File, we selected adults aged ≥25 years with self-reported stroke.
JAMA Netw Open
December 2024
Center for Health Equity Transformation, Department of Behavioral Science, University of Kentucky, Lexington.
Importance: Health disparities among racial and ethnic minoritized populations, particularly for cancer mortality rates, remain a major public health concern. Men from underrepresented backgrounds (Black and Hispanic men, specifically) face the pervasive effects of discrimination in their daily lives, which also contribute to the complex associations among allostatic load (a marker of chronic stress), educational opportunities, and elevated risks of cancer mortality.
Objective: To elucidate the associations among educational attainment, allostatic load, and cancer mortality risk among men.
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