Association of heatwave exposure and multimorbidity with depression trajectories among older adults: evidence from the China Health and Retirement Longitudinal Study

This study highlights the vulnerability of older adults with multimorbidity to worsened depression under heatwave exposure, emphasizing the need for tailored mental health interventions. Integrating climate adaptation and multimorbidity care is crucial for mitigating mental health impacts in this population. Policymakers should prioritize targeted interventions, incorporating climate adaptation and heatwave preparedness into mental health protocols to reduce adverse outcomes.