Abstract

The accelerating climate crisis—heat waves, cold waves, and air pollution—is exacerbating health inequalities among vulnerable populations including the elderly and people with disabilities. While digital healthcare technology has gained attention as a potential solution, fragmented information and high digital entry barriers often exclude those most in need. This paper proposes a multi-agent-based personalized health feedback system as an alternative that moves beyond existing information-providing digital healthcare. The system features agents acting as a doctor, pharmacist, and environmental health expert, who comprehensively interpret personal health and environmental exposure data to deliver personalized feedback. This paper discusses the potential of this system to contribute to promoting health equity by mitigating the individual gap in capacity to respond to health risks. Simultaneously, it critically examines the ethical and structural challenges, including accountability, accessibility, and the relationship with human care. This paper ultimately argues that, if properly designed, the system can reduce individual disparities in health risks response by integrating environmental, medical, and medication data—expanding protection for vulnerable groups and enabling community-level public health interventions.