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Everyday Unfair Treatment and Multisystem Biological Dysregulation in African American Adults

Objective: Increasing evidence suggests that chronic exposure to unfair treatment or day-to-day discrimination increases risk for poor health, but data on biological stress mechanisms are limited. This study examined chronic experiences of unfair treatment in relation to allostatic load (AL), a multisystem index of biological dysregulation. Method: Data are from a sample of 233 African-American adults (37–85 years; 64% women). Perceptions of everyday unfair treatment were measured by questionnaire. An AL index was computed as the sum of 7 separate physiological system risk indices (cardiovascular regulation, lipid, glucose, inflammation, sympathetic nervous system, parasympathetic nervous system, hypothalamic pituitary adrenal axis). Results: Adjusting for sociodemographics, medication use, smoking status, alcohol consumption, depressive symptoms, lifetime discrimination, and global perceived stress, everyday mistreatment was associated with higher AL. Conclusions: The results add to a growing literature on the effects of chronic bias and discrimination by demonstrating how such experiences are instantiated in downstream physiological systems.