“…While concerns have been raised about the limited robustness of many studies (cross-sectional versus randomised control trials) and the lack of clear insight into the causal mechanisms that bring about the benefits (Jenkinson et al ., 2013), findings from several studies suggest that participation is associated with improvements in physical and mental health, self-esteem and life satisfaction. The results also indicated participation is associated with reductions in depressive symptoms and lower mortality rates (Greenfield and Marks, 2004; Harris and Thoresen, 2005; Lum and Lightfoot, 2005; Carlson et al ., 2008, 2009; Hong and Morrow-Howell, 2010; Tang et al ., 2010; von Bonsdorff and Rantanen, 2011; Fried et al ., 2013; Anderson et al ., 2014; Parisi et al ., 2015; Berg and Johansen, 2017; Milbourn et al ., 2018). In addition, results from randomised control studies of the benefits of participation in Experience Corps, an intergenerational volunteer programme that placed older adults in public schools for two years, include improvements in physical functioning and increases in physical activity (Fried et al ., 2013; Parisi et al ., 2015; Varma et al ., 2016).…”