Obesity moderates the complex relationships between inflammation, oxidative stress, sleep quality and depressive symptoms

BackgroundThe relationship between obesity and depression is complex. This study assessed the impact of body mass index (BMI) on the link between BMI, inflammation, oxidative stress, sleep quality and self-reported depressive symptoms.MethodsWe used data from the U.S. National Health and Nutritional Examination Survey 2005–2008 cycles (n = 9133; ≥20y). Depressive symptoms and sleep quality were determined from questionnaires. C-reactive Protein …