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Gratitude-based interventions are effective in facilitating positive relationships and increasing life satisfaction. However, for some individuals (e.g., with high levels of depression and low trait-gratitude) gratitude expression is threatening and rarely undertaken spontaneously. In this study, we expected to replicate this gratitude expression threat effect. Moreover, we aimed to understand psychophysiological mechanisms of this effect by accounting for cognitive, motivational, and physiological responses to gratitude expression in line with the biopsychosocial model of challenge and threat. One hundred ninety-six students (51% women) between the ages of 18 and 31 years old (M = 21.20, SD = 2.08) reported personality measures and completed a laboratory session where they expressed gratitude via text messages after reporting evaluation and motivation towards the task. Their cardiovascular reactivity was monitored continuously. After the session, participants were invited to continue a gratitude intervention for the next three weeks. We found that individuals with higher depression and lower trait-gratitude were less likely to initiate gratitude intervention. This effect was mediated by a cardiovascular marker of threat (total peripheral resistance) that inhibited motivation and behavior. In summary, we replicated and provided further evidence for the role of personality traits in predicting aversive responses to gratitude expression via interventions. These findings contribute to the person-activity fit recommendations. [ABSTRACT FROM AUTHOR]

Beyond a hedonic model of the good life-approach pleasure and avoid pain-evidence is accumulating across species that well-being depends on potentially painful goal pursuit processes, like effort, engagement, and discovery. We hypothesized that daily challenges may provide a unique opportunity to fulfill such processes and that challenges would be more relevant within the promotion (gain-focused) than prevention (nonloss-focused) motivational system. Accordingly, we predicted that: (1) individuals who tend to be successful versus unsuccessful in achieving promotion-type goals would be better at managing daily challenges; and (2) challenge dysregulation would undermine promotion-related well-being (depressive symptoms) more than prevention-related well-being (anxiety symptoms). Across three studies, we find evidence in support of these hypotheses. Notably, as we find consistent evidence that too many and too few challenges may be damaging to mental health, we conclude that effective challenge regulation-not minimization-is likely to be a necessary component of optimal well-being. [ABSTRACT FROM AUTHOR]