Adults over 65 account for an increasing proportion of the population in developed countries (Restrepo & Rozental, 1994, Shetty, 2012). This proportion is increasing and is expected to reach one in five people in developing countries by 2050 (Depp & Jeste, 2006). With this demographic shift, it is critical to investigate how to age successfully with low levels of disability, high cognitive and physical functioning, and high activity level (Rowe & Kahn, 1997,Urtamo, Jyväkorpi, & Strandberg, 2019, Fillit et al., 2002). Cognitive functioning is an important aspect of successful aging, and while cognitive decline is common in older adults, the rate of change is highly variable (Park, O'Connell, & Thomson, 2003, Fernández-Ballesteros, Benetos, & Robine, 2019, Perlmutter, Kaplan, & Nyquist, 1990). Physical health (Zelinski et al., 1998, Ownby et al., 2006), depression, and physical activity (James et al., 2011) are all important individual characteristics that are consistently associated with cognitive decline variability as well as, social interaction (Zunzunegui et al., 2003, Bertogg & Leist, 2021). However, questions remain about how these variables interact with one another and whether some, but not all, are uniquely associated with cognition over time.
However, the literature does not support the notion that living with others is beneficial to cognitive health. Some empirical studies appear to suggest that living with others may be beneficial to cognitive functioning. In line with the economic and psychological benefits 18 of living with a partner in later life, some studies suggest that being in a partnership has a positive effect on cognitive functioning compared to being single (Håkansson et al., 2009). Additionally, the impact of living with adult children was also studied and showed a positive influence on cognitive function although uncertain (MAZZUCO et al., 2016, Zhang & Fletcher, 2021). Yet, the relationship between family status (marital status and parenthood), well-being, and psychological well-being is widely debated in academic and popular discourses (Li et al., 2020). Research shows that being married or residing with a partner is associated with Improved mental health and fewer depressive symptoms in old age (Bures et al., 2009, Gibney et al., 2017).
However, the direct pathway of impact only accounts for a portion of the effect of family relations on cognitive health. In addition to providing mental stimulation, interacting, and collaborating with others can improve cognitive health by lowering psychological stress and improving mental health. (Arpino, B. and Bordone, V. 2014) present a conceptual model of cascading social processes in which meaningful other engagement can affect cognitive health via mediators such as psychological distress. Although this proposed mechanism has been raised as a possible explanation for the associations between social networks and cognitive health, there has been little empirical research into it (Fratiglioni, Paillard-Borg, & Winblad, 2004, Bourassa et al., 2015).
Moreover, contact frequency is commonly assumed to directly impact cognitive health in old age, as represented by the 'use it or lose it' theory. According to this viewpoint, frequent interaction with others provides 'cognitive exercise,' stimulating the mind and preserving cognitive functions. Navigating social cues, organizing social gatherings, and engaging in complex social discourse can all provide cognitive stimulation. Such encounters can also improve cognitive reserve, allowing people to tolerate brain pathology without displaying obvious behavioral symptoms (Bennett et al., 2006) .
The aspects of parenthood may thus differ depending on the life-cycle stage, implying that the positive aspects of parenthood predominate as we age. The role of children as a form of social support (Yeh & Liu, 2003), among other things, may become necessary in the later stages of a person's life (Margolis & Myrskylä, 2011, Becker, Kirchmaier, & Trautmann, 2019, Wasserman & Faust, 1994). But what exactly is social support? (Cobb S. 1976) provides one of the most frequently cited definitions, describing social support as "information leading the subject to believe that he is cared For and adored, respected, and a member of mutual obligations." Social support is described by the U.S. National Cancer Institute as "a network of family, friends, neighbours, and community members that are available in times of need to give psychological, physical, and financial assistance." A social network is defined as a "set of actors and the ties that connect them" (Pearson, 1986), while social support describes the quantity and quality of these ties from an individual perspective. While there are numerous definitions of social support, most of them include factors such as network size and structure, the physical distance to other network members, length of relationships, frequency of contact, or function of each tie. According to the evidence, such social support networks are associated with less loneliness and more happiness (Litwin & Shiovitz-Ezra, 2011, Litwin & Stoeckel, 2014, Şahin, Özer, & Yanardağ, 2019) and serve as an essential buffer against stressful situations (Cohn-Schwartz, Levinsky, & Litwin, 2020).
A longitudinal study conducted by (Bassuk, Glass, & Berkman, 1999) discovered that older population with no social ties were at a higher risk of cognitive decline than those with five or six social ties. Boult and colleagues discovered that social support was associated with a lower risk of developing disability up to 4 years later by using frequency of contact with friends and colleagues as an indicator. A prospective cohort study of 1,203 non-dementia patients was conducted. Fratiglioni and colleagues (2004) discovered that a social network reduced the incidence of dementia in people aged 75 and up for three years.
We investigate the effect of social support on cognitive function in a convenient sample of the Egyptian population. We investigated the relationship between social support and cognitive function in older population by controlling for individual characteristics such as age, gender, and health status.
While the results on parenthood are debatable and depend on the age of the population studied, there is widespread agreement that social support is associated with higher life satisfaction and that social networks are an important factor in well-being. This sample is conducted as a pilot phase of A Longitudinal Study of Egyptian Healthy Aging (AL-SEHA) that adapts the European Survey of Health, Ageing, and Retirement (SHARE) questionnaire.