“…Health was measured both in the form of health outcomes, including depression, poor sleep quality and anxiety, and health risk indicators, including hostility, optimism and self-esteem. Depression (Mackenzie et al, 2011), sleep problems (Buboltz, Brown, & Soper, 2001) and anxiety (Wittchen, Nelson, & Lachner, 1998) are common for young adults. Moreover, early instances of depression (Gopinath, Katon, Russo, & Ludman, 2007), poor sleep quality (Krueger & Friedman, 2009) and anxiety (Woodward & Fergusson, 2001), predict both later relapse and worse long-term health.…”