Same old, same old? Age differences in the diversity of daily life.
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ABSTRACT:
SUBMITTER: Weber C
PROVIDER: S-EPMC8021140 | biostudies-literature |
REPOSITORIES: biostudies-literature
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Project description:ObjectivesAge differences in the exposure to minor hassles in daily life have been postulated by socioemotional selectivity theory and reported by previous research, with older adults reporting fewer stressors. The present study examined two potential mechanisms explaining this reduction in reported stressor exposure with advancing age: age-related changes in proactive coping and in the threshold of labeling an event as stressor.MethodParticipants (N = 178; 20-79 years; M = 49.5; SD = 17; 51% female) were investigated in a measurement burst study consisting of three measurement bursts (each comprised of five daily assessments for 7 consecutive days), separated by 9 months each.ResultsOlder age was unrelated to reporting an event or the thresholds for labeling the event as a stressor, but was positively related to self-reported use of proactive coping and negatively related to reported event severity.DiscussionResults are consistent with the view that older adults engage in more proactive coping to deal with minor hassles in their daily lives to manage these problems before they become more stressful. Older adults did not report fewer potentially stressful events but they reported these events as less unpleasant. The adaptive value of proactive coping, in particular for older adults, is discussed.
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Project description:ObjectivesHaving friends in old age is linked to higher levels of happiness and life satisfaction. Yet, we know little about older adults' emotional experiences when they encounter friends throughout the day. This study examined whether older adults reported (a) more pleasantness, (b) fewer conversations about stressful experiences, and (c) better mood when they had contact with friends compared to when they had contact with other social partners or were alone throughout the day. We also examined whether these experiences varied by the friendship closeness.MethodAdults aged 65+ (n = 313) from the Daily Experiences and Well-being Study provided background information and listed and described their close social partners. Participants then completed ecological momentary assessment (EMA) surveys every 3 hr for 5 to 6 days where they reported their encounters with social partners, rated the pleasantness and indicated whether they discussed stressful issues during these encounters, and rated positive and negative mood.ResultsMultilevel models revealed that encounters with friends were more pleasant and were associated with fewer discussions about stressful experiences compared to encounters with romantic partners or family members throughout the day. Encounters with friends were also associated with better mood, though this link only held for encounters with friends who were not considered close.DiscussionFindings are discussed in terms of functionalist theory, socioemotional selectivity theory, relationship ambivalence, and the benefits of less close ties. This work facilitates the understanding of how daily contact with friends can promote older adults' emotional well-being.
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Project description:Promoting quality of life is a central theme in recent ageing policies, but what quality of life means in concrete terms for people in different stages of old age is rather unclear. This study presents a multi-dimensional model of care-related quality of life (crQoL) and, based on analyses of three Finnish cross-sectional datasets from the years 2004-2007, examines the distinctions between dimensions of QoL by age and gender, with a special focus on older home care clients. Correlation analyses (Pearson) and stepwise linear regression were applied to analyse variation in QoL by age group and the association between QoL and perceived quality of home care. The results suggest that individual QoL and the priorities of (physical, psychical, social, and environmental) dimensions in the assessment of QoL by older persons vary considerably and exhibit distinct profiles in different stages of ageing. In addition, four dimensions for good care corresponding to the crQoL model were identified and their empirical relevance demonstrated. From the perspective of older people in need of help, home care is not just about giving them the instrumental help they need to perform their daily activities, but rather about giving responsive care that reflects their personal preferences or their view on a "good life", and treats them with dignity and respect. The criteria for the evaluation of quality of home care should reflect these insights, and policy measures should take these differences into account.
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Project description:Contrary to common stereotypes, loneliness is not restricted to old age but can occur at any life stage. In this study, we used data from a large, nationally representative German study (N = 16,132) to describe and explain age differences in loneliness from late adolescence to oldest old age. The age distribution of loneliness followed a complex nonlinear trajectory, with elevated loneliness levels among young adults and among the oldest old. The late-life increase in loneliness could be explained by lower income levels, higher prevalence of functional limitations, and higher proportion of singles in this age group. Consistent with an age-normative perspective, the association of income, relationship status, household size, and work status with loneliness differed between different age groups. In contrast, indicators of the quantity of social relationships (social engagement, number of friends, contact frequency) were universally associated with loneliness regardless of age. Overall, these findings show that sources of loneliness in older adults are well understood. Future research should focus on understanding the specific sources of loneliness in middle-aged adults. (PsycINFO Database Record
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Project description:Survival in primates is facilitated by commensal gut microbes that ferment otherwise indigestible plant matter, resist colonization by pathogens, and train the developing immune system.1,2 However, humans are unique among primates in that we consume highly digestible foods, wean early, mature slowly, and exhibit high lifelong investments in maintenance.3-6 These adaptations suggest that lifetime trajectories of human-microbial relationships could differ from those of our closest living relatives. Here, we profile the gut microbiota of 166 wild chimpanzees aged 8 months to 67 years in the Kibale National Park, Uganda and compare the patterns of gut microbial maturation to those previously observed in humans. We found that chimpanzee gut microbial alpha-diversity, composition, density, interindividual variation, and within-individual change over time varied significantly with age. Notably, gut microbial signatures in infants <2 years old were distinct across all five metrics. Infant chimpanzee guts were enriched in some of the same taxa prevalent in infant humans (e.g., Bifidobacterium, Streptococcus, and Bacteroides), and chimpanzee gut microbial communities, like those of humans, exhibited higher interindividual variation in infancy versus later in life. However, in direct contrast to human infants, chimpanzee infants harbored surprisingly high-diversity rather than low-diversity gut bacterial communities compared with older conspecifics. These data indicate differential trajectories of gut microbiota development in humans and chimpanzees that are consistent with interspecific differences in lactation, diet, and immune function. Probing the phenotypic consequences of differential early-life gut microbial diversity in chimpanzees and other primates will illuminate the life history impacts of the hominid-microbiome partnership.
| S-EPMC7993011 | biostudies-literature
Project description:Prior research in non-U.S. samples has found a complex nonlinear relationship between loneliness and age. This research has shown that established predictors of loneliness - poor health, being unmarried, living alone, and having infrequent social interactions - help to explain age differences in loneliness. However, while some variables were found to be universal predictors of loneliness at all ages, others were relevant in specific age groups only. In this study, we describe age differences in frequency of loneliness from age 18 to 89+ years in the U.S., and examine age differences in predictors of loneliness from age-specificity and age-normative perspectives. We used cross-sectional nationally representative data from the General Social Survey (N = 2,477) and found a nonlinear relationship between age and loneliness that closely resembles prior research. However, we found no evidence for age-specific predictors of loneliness. Household income, household size, marital status, health, and frequency of socializing were "universal" predictors of loneliness; their associations with loneliness did not differ in strength with age. Our hypothesis that individuals who deviated from age-specific norms would experience more intense loneliness was not supported. Implications for research and loneliness interventions are discussed.
| S-EPMC8734589 | biostudies-literature
Project description:DNA methylation-derived epigenetic clocks offer the opportunity to examine aspects of age acceleration (ie, the difference between an individual's biological age and chronological age), which vary among individuals and may better account for age-related changes in cognitive function than chronological age. Leveraging existing ambulatory cognitive assessments in daily life from a genetically diverse sample of 142 adults in midlife, we examined associations between 5 measures of epigenetic age acceleration and performance on tasks of processing speed and working memory. Covarying for chronological age, we used multilevel models to examine associations of epigenetic age acceleration (Horvath 1, Horvath 2, Hannum, PhenoAge, and GrimAge clocks) with both average level and variability of cognitive performance. Positive age acceleration (ie, epigenetic age greater than chronological age) was associated with poorer mean processing speed (Horvath 1 and 2) and working memory (GrimAge). Higher chronological age was also associated with poorer mean processing speed and working memory performance. Further, positive age acceleration was generally associated with greater intraindividual variability in working memory and processing speed tasks, whereas being chronologically older was associated with less intraindividual variability. Although further work is needed, our results indicate age acceleration effects have comparable or greater size as those for chronological age differences, suggesting that epigenetic age acceleration may account for additional risk and interindividual variation in cognitive performance above chronological age.
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Project description:This article focuses on the scientific study of quality of life in old age and summarises, on the one hand, what we know and, on the other, what further research is needed. It consists of three main parts, with an extended introduction charting the recent evolution of a European perspective on ageing. First of all, it emphasises the amorphous, multidimensional and complex nature of quality of life and the high level of inconsistency between scientists in their approach to this subject. Secondly, the article summarises the main areas of consensus about quality of life in old age-its dynamic multifaceted nature, the combination of life course and immediate influences, the similarities and differences in the factors determining quality of life between younger and older people, the most common associations with quality of life and the likely variations between groups, and the powerful role of subjective self-assessment. Thirdly, the main research priorities and gaps in knowledge are outlined, together with the key methodological issues which must be tackled if comparative, interdisciplinary research on quality of life is to develop further. The main sources for the article are two European Framework Programme projects-the one a small five-country comparison and the other a large multidimensional project which, among other things, has been developing recommendations for research on quality of life in old age and included an extensive literature review on this topic. The article also draws on the recently completed UK Growing Older Programme of research on extending quality of life.
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Project description:Cognitive adaptation in the elderly and the motivated use of temporal and social comparisons set the conceptual frame for the present study. Three research questions were investigated in a sample of 2.129 persons aged between 50 and 90 years. First, the direction of social and temporal comparisons for three domains (physical fitness, mental fitness, psychological resilience) was studied, and findings did show that especially lateral followed by upward comparisons were most frequent under both perspectives; downward comparisons clearly showed the least frequency. Second, the distribution of comparison directions was investigated across four age groups. These analyses showed that upward comparisons increased and lateral comparisons decreased across age groups; differential results were observed for the domains under consideration. Third, the relation between social and temporal comparisons and self-esteem was studied. Results obtained here indicated a motivated use of specific comparison directions since downward social comparisons and upward temporal comparisons were most frequent in persons with low self-esteem. Taken together, the study underlines the different functions of social and temporal comparisons in adulthood and old age; it indicates a predominant need for consensus and consistency, and it highlights the importance of self-esteem in cognitive adaptation.
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Project description:Aging is known to have deleterious effects on cerebral white matter, yet little is known about these white matter alterations in advanced age. In this study, 94 oldest-old adults without dementia (90-103 years) underwent diffusion tensor imaging to assess relationships between chronological age and multiple measures of integrity in 18 white matter regions across the brain. Results revealed significant age-related declines in integrity in regions previously identified as being sensitive to aging in younger-old adults (corpus callosum, fornix, cingulum, external capsule). For the corpus callosum, the effect of age on genu fractional anisotropy was significantly weaker than the relationship between age and splenium fractional anisotropy. Importantly, age-related declines in white matter integrity did not differ in cognitively normal and cognitively impaired not demented oldest-old, suggesting that they were not solely driven by cognitive dysfunction or preclinical dementia in this advanced age group. Instead, white matter in these regions appears to remain vulnerable to normal aging processes through the 10th decade of life.
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