Methylenetetrahydrofolate reductase (MTHFR) C677T polymorphism is involved in folate and homocysteine metabolism, and has been associated with geriatric disorders, including dementia and late-life depression. The present work aimed to investigate the effect of MTHFR C677T polymorphism on the presence of depression and loneliness in cognitively normal male subjects. A total of 323 cognitively no...

OBJECTIVE Loneliness is one of the psychological characteristics in adolescence, during which sex hormones are elevated. The elevation of sex steroid hormones is known to sculpture and remodel neuronal circuits, which cause behavioral characteristics in adolescence. The aim of the present study is to investigate the relationship between loneliness and sex steroid hormones, testosterone (T) and ...

Robert Weiss (1973) conceptualised loneliness as perceived social isolation, which he described as a gnawing, chronic disease without redeeming features. On the scale of everyday life, it is understandable how something as personally aversive as loneliness could be regarded as a blight on human existence. However, evolutionary time and evolutionary forces operate at such a different scale of or...

BACKGROUND Loneliness is widespread among older adults, in particular among those who are chronically ill and functionally limited. The aims of the paper are: (i) to examine the extent to which users of day care centers experience loneliness compared to their peers who are non-users; and (ii) to explore the relationships between length of use and frequency of weekly attendance at day care cente...

To live with feelings of loneliness has negative implications for quality of life, health and survival. This study aimed to examine changes in loneliness among older people, both with regard to prevalence rates, and socio-demographic, social and health-related correlates of loneliness. This study had a repeated cross-sectional design and was based on the nationally representative Swedish Panel ...

In this study, Weiss's (1973) theorizing about the sources of emotional and social loneliness is elaborated--with notions about the asymmetric gratifications derived from marriage, about the conflicting loyalties that result from remarriage, and about selection into marriage--in order to reach an understanding of gender differences in loneliness, both in and outside of marriage. First and subse...

Given the socially isolated status of Chinese heroin-dependent patients (HDPs) and the significant association between loneliness and sleep problem in the general population, the impact of loneliness on sleep of HDPs is potentially substantial. The study aimed to test whether loneliness is associated with poor sleep in terms of quantity and quality in a consecutive sample of Chinese HDPs receiv...

The present study explored social and emotional loneliness, and victimisation among a sample of adult male prisoners. 241 prisoners took part, completing a behavioural measure of behaviours indicative of bullying (DIPC-R: Direct and Indirect Prisoner behaviour Checklist, Ireland, J.L. 2003. The Direct and Indirect Prisoner behaviour Checklist -- Revised. Psychology Department, University of Cen...

Loneliness concerns the subjective evaluation of the situation individuals are involved in, characterized either by a number of relationships with friends and colleagues which is smaller than is considered desirable (social loneliness), as well as situations where the intimacy in confidant relationships one wishes for has not been realized (emotional loneliness). To identify people who are lone...

OBJECTIVE The objective of this study was to test a conceptual model of loneliness in which social structural factors are posited to operate through proximal factors to influence perceptions of relationship quality and loneliness. METHODS We used a population-based sample of 225 White, Black, and Hispanic men and women aged 50 through 68 from the Chicago Health, Aging, and Social Relations St...