Loneliness from Young Adulthood to Old Age: Explaining Age Differences in Loneliness.

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.

Nothing going on? Exploring the role of missed events in changes in subjective well-being and the Big Five personality traits.

OBJECTIVE: Missed events are defined as the nonoccurrence of expected major life events within a specified time frame. We examined whether missed events should be studied in research on growth by exploring the role of missed events for changes in subjective well-being (SWB) and the Big Five personality traits. METHOD: The samples were selected from two nationally representative panel studies, the German Socioeconomic Panel Innovation Sample (SOEP-IS, total N = 6,638) and the Dutch Longitudinal Internet Studies for the Social Sciences panel (LISS, Ns between 4,262 and 5,749). Rank-order stability and mean-level change were analyzed using regression and mixed models. Type I error probability was reduced by using conservative thresholds for level of significance and minimal effect size. RESULTS: Expected but missed events were more frequent than actually experienced events. For SWB, rank-order stability tended to be lower among those who experienced a missed event than among those who did not. For the Big Five personality traits, significant differences between those who did and those who did not experience a missed event were rare and unsystematic. CONCLUSION: Missed events merit more attention in future research on growth and personality change, but the effects are probably weak.

Changes in daily loneliness for German residents during the first four weeks of the COVID-19 pandemic.

RATIONALE: The coronavirus disease 2019 (COVID-19) outbreak has dramatically altered people's social lives due to social restriction measures taken to control the coronavirus spread. Early on, increased loneliness has been publicly discussed as a harmful psychological side effect of these measures. Due to the serious adverse health consequences of loneliness, it is essential to take these concerns seriously and investigate them systematically to allow for evidence-based decision making. Thus far, however, high-resolution empirical evidence of such harmful side effects is rare. METHODS: The present preregistered large-scale daily diary study assessed daily loneliness in 4,844 German adults between March 16 and April 12, 2020. RESULTS AND CONCLUSION: Daily loneliness slightly increased during the first two weeks since implementing the pandemic-related measures and slightly decreased thereafter. With increasing age, daily loneliness increased more strongly over the four weeks. Moreover, daily loneliness increased more strongly for parents compared to people without children. Thus, despite some increases in loneliness in some individuals, there was no linear increase in loneliness in response to the first pandemic-related measures in the present sample.

The interplay of domain-and life satisfaction in predicting life events.

To better understand the occurrence of major changes in people´s lives like job changes or relocations, we test a model of motivational consequences of life and domain satisfaction using data of the German socio-economic panel study (SOEP) (waves 2005-2015; Ns between 2,201 and 28,720). We examined job and location changes as outcomes that people may actively initiate as a result of dissatisfaction with these domains. One of our results indicates that for similar levels of job satisfaction, individuals with higher levels of life satisfaction were more likely to report a subsequent job change, presumably because they possess necessary resources to actively initiate such a major life change. The patterns were similar for relocation satisfaction and subsequent relocation, but not all effects were significant. Generally, the effects of life satisfaction and domain satisfaction on life events were independent of affective well-being. Contrary to what we expected based on life-span theories, perceived control did not significantly moderate the tested mechanisms. These findings furthermore show that examining life satisfaction and domain satisfaction in isolation can lead to theoretically and empirically false conclusions. Contrary to previous research, high life satisfaction appears to not be a general driver for stability but rather should be seen as an indicator of resourcefulness that allows people to strive for changes in specific life domains.

Are U.S. older adults getting lonelier? Age, period, and cohort differences.

Media portrayals of a loneliness "epidemic" are premised on an increase in the proportion of people living alone and decreases in rates of civic engagement and religious affiliation over recent decades. However, loneliness is a subjective perception that does not correspond perfectly with objective social circumstances. In this study, we examined whether perceived loneliness is greater among the Baby Boomers-individuals born 1948-1965-relative to those born 1920-1947 and whether older adults have become lonelier over the past decade (2005-2016). We used data from the National Social Life, Health and Aging Project and from the Health and Retirement Study collected during 2005-2016 to estimate differences in loneliness associated with age, birth year, and survey time point. Overall, loneliness decreased with age through the early 70s, after which it increased. We found no evidence that loneliness is substantially higher among the Baby Boomers or that it has increased over the past decade. Loneliness is, however, associated with poor health, living alone or without a spouse-partner, and having fewer close family and friends, which together accounted for the overall increase in loneliness after age 75. Although these data do not support the idea that older adults are becoming lonelier, the actual number of lonely individuals may increase as the Baby Boomers age into their 80s and beyond. Our results suggest that attention to social factors and improving health may help to mitigate this. (PsycINFO Database Record (c) 2019 APA, all rights reserved).

Strain-rate sensitive ductility in a low-alloy carbon steel after quenching and partitioning treatment.

We investigate an extraordinarily high ductility in a low alloy carbon steel at an elevated temperature after a quenching and partitioning (Q&P) treatment. The conventional (quenched and tempered) reference material does not show similar behavior. Interestingly, the Q&P treated material's ductility is considerably reduced at increasing strain rates while strength remains almost constant. These results indicate the presence of a diffusion-controlled deformation mechanism at elevated temperatures. Our research shows that interlath retained austenite is more stable during deformation at higher temperatures, resulting in a delayed transformation to martensite and therefore to a more pronounced contribution to plastic deformation at (and in the vicinity of) the many interfaces inherently present in this multi-phase steel.

Long work hours of mothers and fathers are linked to increased risk for overweight and obesity among preschool children: longitudinal evidence from Germany.

BACKGROUND: Most existing studies on maternal employment and childhood overweight/obesity are from the USA. They are predominantly cross-sectional and show a consistent linear association between the two. Less is known about the joint impact of fathers' and mothers' work hours on childhood overweight and obesity. OBJECTIVES: To examine the impact of maternal and paternal work hours on overweight/obesity among children aged 1-6 years in Germany using longitudinal data. METHODS: Child body weight and height and their parents' work hours were collected for 2413 children at ages 0-1, ages 2-3 and ages 5-6. Overweight and obesity was defined using the body mass index percentiles based on the Cole LMS-Method. Random effects model was conducted, adjusting for demographic, socioeconomic and health characteristics of parents and children. RESULTS: Compared with non-employment, when mothers worked 35 or more hours per week, the risk for child overweight and obesity increased among preschool children. When fathers worked 55 or more hours per week, this effect was strengthened and maternal part-time hours (24-34 per week) also became a risk for child overweight and obesity. The effect was mainly found in high-income families. CONCLUSIONS: Both mothers' and fathers' long work hours matter to young children's overweight status. Employment protection and work time regulation for both working parents during the first 6 years of the child's life should be considered in future policy.

Poverty and Child Behavioral Problems: The Mediating Role of Parenting and Parental Well-Being.

The detrimental impact of poverty on child behavioral problems is well-established, but the mechanisms that explain this relationship are less well-known. Using data from the Families in Germany Study on parents and their children at ages 9-10 (middle childhood), this study extends previous research by examining whether or not and to what extent different parenting styles and parents' subjective well-being explain the relationship between poverty and child behavior problems. The results show that certain parenting styles, such as psychological control, as well as mothers' life satisfaction partially mediate the correlation between poverty and child behavioral problems.