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Despite the prominence of the weathering hypothesis as a mechanism underlying racialized inequities in morbidity and mortality, the life course social and economic determinants of Black-White disparities in biological aging remain inadequately understood. This study uses data from the Health and Retirement Study (n = 6,782), multivariable regression, and Kitagawa-Blinder-Oaxaca decomposition to assess Black-White disparities across three measures of biological aging: PhenoAge, Klemera-Doubal biological age, and homeostatic dysregulation. It also examines the contributions of racial differences in life course socioeconomic and stress exposures and vulnerability to those exposures to Black-White disparities in biological aging. Across the outcomes, Black individuals exhibited accelerated biological aging relative to White individuals. Decomposition analyses showed that racial differences in life course socioeconomic exposures accounted for roughly 27% to 55% of the racial disparities across the biological aging measures, and racial disparities in psychosocial stress exposure explained 7% to 11%. We found less evidence that heterogeneity in the associations between social exposures and biological aging by race contributed substantially to Black-White disparities in biological aging. Our findings offer new evidence of the role of life course social exposures in generating disparities in biological aging, with implications for understanding age patterns of morbidity and mortality risks., (Copyright © 2023 The Authors.)

The extant literature on volunteering has focused primarily on the many benefits of volunteering for older adults. However, the question rarely investigated is whether these benefits dissipate when older adults retire from their volunteering. Given the U.S. policy context wherein volunteering is promoted as a solution to the problems of aging, this research investigates the association between the loss of one's volunteering role through retirement and well-being. Utilizing three waves of the U.S.-based National Social Life, Health, and Aging Project (NSHAP) (2005–2016) and a fixed-effects modeling approach, we find that the well-being of older adults, measured as self-reported health, happiness, and depressive risk, is negatively associated with volunteer retirement. Our study contributes to the literature on well-being and volunteering for older adults and is the first study focusing on this critical transition point in the life of older volunteers. In addition, policymakers and organizations must broaden their focus to include not only the recruitment and retention of older adult volunteers but also the transition out of volunteering that many of them will eventually face. [ABSTRACT FROM AUTHOR]

Though Hispanics live long lives, whether a "Hispanic paradox" extends to older-age health remains unclear, as do the social processes underlying racial-ethnic and immigrant-native health disparities. Using data from the Health and Retirement Study (2004-2012; N = 6,581), we assess the health of U.S.- and foreign-born Hispanics relative to U.S.-born whites and blacks and examine the socioeconomic, stress, and behavioral pathways contributing to health disparities. Findings indicate higher disability, depressive, metabolic, and inflammatory risk for Hispanics relative to whites and similar health profiles among Hispanics and blacks. We find limited evidence of a healthy immigrant pattern among foreign-born Hispanics. While socioeconomic factors account for Hispanic-white gaps in inflammation, disparities in other outcomes persist after adjustment for socioeconomic status, due in part to group differences in stress exposure. Hispanics may live long lives, but their lives are characterized by more socioeconomic hardship, stress, and health risk than whites and similar health risks as blacks. [ABSTRACT FROM AUTHOR]