Biobehavioral Age Gaps as a Global Index to Assess Disparities and the Exposome in Accelerated Aging Across 40 Countries

BAGs based in protective/risk factors capture accelerated and delayed aging and its modulation by socioeconomic and exposome disparities. BAGs provide actionable insights for public policy and capacity-building initiatives by identifying modifiable factors to mitigate global aging disparities. Their ease of implementation supports targeted interventions and informed policymaking, especially in resource-limited settings.