Regulatory flexibility and psychological health - Is more always better?

Regulatory flexibility, defined as the ability to use strategies in accordance with contextual demands, is thought to be central to psychological health. In the current research, we test the boundaries of this claim by examining: (1) how broadly does regulatory flexibility relate to different facets of psychological health?, and (2) is more flexibility always better? Across six samples, participants (N = 2939) reported their ability to use strategies flexibly when managing impulses (e.g., temptations) and completed indicators of ill-being and well-being. Findings indicated that people who are more flexible report not only less anxiety and depression but also more positive functioning, including more life satisfaction, meaning, thriving, and positive mental health. There was some goal-to-goal variation, but the same pattern held when controlling for goal-specific covariates and replicated in both meta-analytic and mega-analytic approaches. Interestingly, there was a significant quadratic association between flexibility and well-being but not ill-being. This suggested diminishing returns, such that being more flexible was beneficial for well-being, but only to a certain point. Overall, these findings suggest that having the ability to use strategies flexibly has no apparent downside.