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Latino youth and their families have been shown to experience higher levels of stressors than the general population, as well as additional unique stressors such as racism, poverty, acculturation, and discrimination. Chronic or cumulative stress often disrupts physiological systems and can lead to dysregulation in diurnal cortisol responses. This study examined the associations between family stress and cortisol responses in 57 Latino mother-adolescent dyads (N = 114) living in the Midwestern United States. Dyads collected saliva 6 times across two consecutive days and completed a survey. Results from repeated measures mixed-effect analysis found that both mothers and adolescents in the high-stress group had flatter cortisol awakening responses than those in the low-stress group, which indicated disruptions in their diurnal cortisol rhythms. These findings suggest that family stress can potentially influence the diurnal cortisol patterns of early Latino adolescents as well as adults, which may, in turn, lead to future health problems.

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