“…For example, longitudinal studies show that loneliness predicted changes in depressive symptoms in a variety of populations such as children, patients with cancer and HIV, adolescents, college freshmen, the elderly, and healthy adults (Cacioppo, Hawkley, & Thisted, 2010; Cacioppo, Hughes, Waite, Hawkley, & Thisted, 2006a; Grov, Golub, Parsons, Brennan, & Karpiak, 2010; Heikkinen & Kauppinene, 2004; Jaremka et al, 2013, 2014; Qualter, Brown, Munn, & Rotenberg, 2010; Reyes-Gibby, Aday, Anderson, Mendoza, & Cleeland, 2006; Segrin, 1999; Vanhalst et al, 2012; Wei, Russell & Zakalik, 2005). People who are lonelier also tend to engage in less physical activity and have higher rates of sleep disturbance, both of which are related to increased pain and depressive symptoms (Cheatle et al, 2016; Emery, Wilson, & Kowal, 2014; Harrison, Wilson, Heron, Stannard, & Munafò, 2016; Hawkley, Thisted, & Cacioppo, 2009; Jaremka et al, 2013, 2014; Landmark, Romundstad, Borchgrevink, Kaasa, & Dale, 2011). …”