Brierley Mary-Ellen E, Albertella Lucy, Rotaru Kristian, Destree Louise, Thompson Emma M, Liu Chang, Christensen Erynn, Lowe Amelia, Segrave Rebecca A, Richardson Karyn E, Kayayan Edouard, Chamberlain Samuel R, Grant Jon E, Lee Rico S C, Hughes Sam, Yücel Murat, Fontenelle Leonardo F
BrainPark, Turner Institute for Brain and Mental Health, School of Psychological Sciences & Monash Biomedical Imaging Facility, Monash University, Clayton, Victoria, Australia.
Monash Business School, Monash University, Caulfield, Victoria, Australia.
CNS Spectr. 2021 Dec 13:1-10. doi: 10.1017/S1092852921001048.
Poor mental health is a state of psychological distress that is influenced by lifestyle factors such as sleep, diet, and physical activity. Compulsivity is a transdiagnostic phenotype cutting across a range of mental illnesses including obsessive-compulsive disorder, substance-related and addictive disorders, and is also influenced by lifestyle. Yet, how lifestyle relates to compulsivity is presently unknown, but important to understand to gain insights into individual differences in mental health. We assessed (a) the relationships between compulsivity and diet quality, sleep quality, and physical activity, and (b) whether psychological distress statistically contributes to these relationships.
We collected harmonized data on compulsivity, psychological distress, and lifestyle from two independent samples (Australian n = 880 and US n = 829). We used mediation analyses to investigate bidirectional relationships between compulsivity and lifestyle factors, and the role of psychological distress.
Higher compulsivity was significantly related to poorer diet and sleep. Psychological distress statistically mediated the relationship between poorer sleep quality and higher compulsivity, and partially statistically mediated the relationship between poorer diet and higher compulsivity.
Lifestyle interventions in compulsivity may target psychological distress in the first instance, followed by sleep and diet quality. As psychological distress links aspects of lifestyle and compulsivity, focusing on mitigating and managing distress may offer a useful therapeutic approach to improve physical and mental health. Future research may focus on the specific sleep and diet patterns which may alter compulsivity over time to inform lifestyle targets for prevention and treatment of functionally impairing compulsive behaviors.
心理健康状况不佳是一种心理困扰状态，受睡眠、饮食和体育活动等生活方式因素影响。强迫性是一种跨诊断表型，涵盖一系列精神疾病，包括强迫症、物质相关及成瘾性障碍，它也受生活方式影响。然而，生活方式与强迫性之间的关系目前尚不清楚，但对于深入了解心理健康的个体差异很重要。我们评估了（a）强迫性与饮食质量、睡眠质量和体育活动之间的关系，以及（b）心理困扰是否在统计上对这些关系有影响。
我们从两个独立样本（澳大利亚样本n = 880，美国样本n = 829）收集了关于强迫性、心理困扰和生活方式的协调数据。我们使用中介分析来研究强迫性与生活方式因素之间的双向关系以及心理困扰的作用。
较高的强迫性与较差的饮食和睡眠显著相关。心理困扰在统计上介导了较差睡眠质量与较高强迫性之间的关系，并在统计上部分介导了较差饮食与较高强迫性之间的关系。
针对强迫性的生活方式干预可能首先针对心理困扰，其次是睡眠和饮食质量。由于心理困扰将生活方式和强迫性的各个方面联系起来，专注于减轻和管理困扰可能为改善身心健康提供一种有用的治疗方法。未来的研究可能集中在特定的睡眠和饮食模式上，这些模式可能随时间改变强迫性，为预防和治疗功能性损害的强迫行为的生活方式目标提供信息。
