Phoebe H Lam, Gregory E Miller, Jessica J Chiang, Rachel Y Chiu, Jayson Law, Vanessa Obi, Zidi Mu, Mona El-Sheikh, Daichi Shimbo, Edith Chen
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引用次数: 0
Abstract
Objective: Referred to as "skin-deep resilience," previous studies have found that striving-characterized by high levels of self-control and perseverance-is linked with better psychological health, but worse physical health, particularly among youth of color who have low socioeconomic status. However, the underlying mechanisms are unclear. This study investigated the role of sleep reactivity (poorer sleep following daily stress) in skin-deep resilience by examining the associations among striving, sleep reactivity, psychological health, and a subclinical marker of cardiovascular disease.
Method: Participants were 315 Black youth with low socioeconomic status, who completed self-reported measures of striving (self-control and grit) and psychological health (well-being and internalizing symptoms). Using an 8-day diary and actigraphy approach, sleep reactivity was operationalized as changes in sleep duration, efficiency, and awakenings on days youth reported more stress. Subclinical cardiovascular disease was assessed by measuring peripheral endothelium-dependent vasodilation, determined by measuring brachial artery flow-mediated dilation.
Results: High strivers exhibited good psychological health (well-being: β = .46; internalizing symptoms: β = -.31) but had sleep systems that were more responsive to daily stress (i.e., striving was associated with shorter, β = .17, less efficient, β = .13, and less continuous, β = .11, sleep on days with more stress); in turn, sleep reactivity to daily stress was associated with poorer flow-mediated dilation (efficiency β = -.17, awakenings β = -.13).
Conclusion: These findings highlight the sleep system's reactivity to daily stressors as a potential mechanism underlying skin-deep resilience. (PsycInfo Database Record (c) 2025 APA, all rights reserved).
期刊介绍：
Health Psychology publishes articles on psychological, biobehavioral, social, and environmental factors in physical health and medical illness, and other issues in health psychology.
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