“…These lifestyle interventions spanned healthy populations ( Barlow and Barefoot, 1996, n ¼ 52, adults with arthritis;Channon et al, 2003, n ¼ 22, adolescents with diabetes;Horn et al, 2004, n ¼ 258, adolescent smokers;Kerr et al, 2008, n ¼ 401, adults who were overweight or obese; Ruusunen et al, 2012, n ¼ 522, people with impaired glucose tolerance who were overweight or obese) and people with mental health problems (Baker et al, 2005, n ¼ 214, adult amphetamine users;Buettner and Fitzsimmons, 2009 The studies measured depression, mood, anxiety, stress and/or wellbeing. All but three studies (Bond et al, 2004;Channon et al, 2003;Rolland et al, 2007) showed improvements among at least one measure of mental health and wellbeing.…”