“…SWB has been widely studied by scholars in recent decades (Costa and Mccrae, 1980; Dirksen, 1990; van Campen and Iedema, 2007; Pu et al, 2015). A large amount of literature suggests that SWB plays an important role in maintaining mental and physical health, and can reduce the occurrence of depressive symptoms and suicidal tendency, relieve psychological stress, promote healthy lifestyles, alleviate the physical pain of patients, thus reducing the incidence of diseases and prolonging life-span (Baiden et al, 2016; Lucas-Molina et al, 2018; Martin-Maria et al, 2018; Tey et al, 2018; Furrer et al, 2019; Kaiser et al, 2019; Steptoe, 2019). SWB is also inseparable from some positive psychological factors, such as hope and optimism, and can even be a key predictor of quality of life (Bennett et al, 2015; Kaye-Tzadok et al, 2019).…”