Socioeconomic status, positive experiences, and allostatic load

Area of Science:

• Social Epidemiology
• Health Psychology
• Biomedical Sciences

Background:

• Socioeconomic status (SES) is linked to health disparities.
• Physiological dysregulation, measured by allostatic load (AL), may mediate this relationship.
• Positive life experiences (POS) may influence physiological well-being.

Purpose of the Study:

• To investigate if cumulative SES (CSES) is associated with lower AL.
• To examine if POS mediates the CSES-AL association.
• To determine if the association between POS and AL varies by socioeconomic status.

Main Methods:

• Data from the Midlife Development in the United States Biomarker Project (N = 2,096) were analyzed.
• Mediation and moderated mediation analyses were conducted.
• The moderating role of CSES on the POS-AL association was tested.

Main Results:

• POS weakly mediated the association between CSES and AL.
• CSES moderated the POS-AL association, with POS impacting AL primarily at lower CSES levels.
• Moderated mediation confirmed that POS mediated the CSES-AL link mainly for lower SES individuals.

Conclusions:

• Positive life experiences may play a more critical role in physiological health for those with lower socioeconomic advantage.
• Positive experiences represent a potential pathway through which lower SES contributes to poor health.
• Interventions targeting positive life experiences could help reduce health disparities.