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See detailPolygenic Scores for Education, Health, and Personality as Predictors of Subjective Age Among Older Individuals of European Ancestry: Evidence From the Health and Retirement Study
Stephan, Yannick; Sutin, Angelina R.; Kornadt, Anna Elena UL et al

in PSYCHOLOGY AND AGING (2019), 34(1), 139-144

The present study aimed to identify whether polygenic scores (PGSs) for education, health and psychological factors are related to subjective age in a large sample of older adults. Participants were 7,763 ... [more ▼]

The present study aimed to identify whether polygenic scores (PGSs) for education, health and psychological factors are related to subjective age in a large sample of older adults. Participants were 7,763 individuals of European ancestry (57% women, Mean age = 69.15, SD = 10.18) from the Health and Retirement Study who were genotyped and provided subjective age data. Higher PGSs for educational achievement and well-being were related to a younger subjective age, whereas higher PGSs for neuroticism, body mass index, waist circumference, and depressive symptoms were associated with an older subjective age. This study provides new evidence on the potential genetic underpinnings of subjective age. [less ▲]

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See detailHigher IQ in adolescence is related to a younger subjective age in later life: Findings from the Wisconsin Longitudinal Study
Stephan, Yannick; Sutin, Angelina R.; Kornadt, Anna Elena UL et al

in INTELLIGENCE (2018), 69

Subjective age predicts consequential outcomes in old age, including risk of hospitalization, dementia, and mortality. Studies investigating the determinants of subjective age have mostly focused on aging ... [more ▼]

Subjective age predicts consequential outcomes in old age, including risk of hospitalization, dementia, and mortality. Studies investigating the determinants of subjective age have mostly focused on aging-related factors measured in adulthood and old age. Little is known about the extent to which early life factors may contribute to later life subjective age. The present study examined the prospective association between IQ in adolescence and subjective age in later life and tested education, disease burden, adult cognition, and personality traits as potential mediators. Participants (N = 4494) were drawn from the Wisconsin Longitudinal Study. Data on IQ were obtained in 1957 when participants were in high school. Education, disease burden, cognition, and personality were assessed in 1992-1993, and subjective age was measured in 2011 at age 71 (SD = 0.93). Accounting for demographic factors, results revealed that higher IQ in adolescence was associated with a younger subjective age in late life. Bootstrap analysis further showed that this association was mediated by higher openness. The present study suggests that how old or young individuals feel is partly influenced by lifespan developmental processes that may begin with early life cognitive ability. [less ▲]

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See detailLooking Beyond Chronological Age: Current Knowledge and Future Directions in the Study of Subjective Age
Kotter-Gruehn, Dana; Kornadt, Anna Elena UL; Stephan, Yannick

in GERONTOLOGY (2016), 62(1), 86-93

The notion of the heterogeneity of aging goes along with the awareness that every person experiences aging differently. Over the past years, scholars have emphasized that the assessment of these ... [more ▼]

The notion of the heterogeneity of aging goes along with the awareness that every person experiences aging differently. Over the past years, scholars have emphasized that the assessment of these subjective experiences of aging contributes to our understanding of a range of psychological and physiological processes and outcomes among older adults. One construct frequently used in this context is subjective age, that is, how old or young a person feels. Subjective age has been shown to be an important correlate as well as a predictor of markers of successful aging such as well-being, health, and longevity. However, less is known about the antecedents of subjective age and the mechanisms underlying the relationship between feeling younger and positive developmental outcomes. This article briefly summarizes and critically evaluates the empirical evidence on this topic and makes suggestions on how to address and potentially overcome currently existing theoretical, methodological, and psychometric challenges. Based on the discussion of these challenges, the paper provides directions for future research by outlining underexplored topics such as intraindividual variability and determinants of subjective age, the match between objective age indicators and subjective age, and how subjective age maps on behavior and functioning. (C) 2015 S. Karger AG, Basel [less ▲]

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