Asian University of Bangladesh, Dhaka, Bangladesh.

This study investigates the profound impacts of extreme heat and humidity on human health and well-being, specifically focusing on the challenges faced by populations in South Asia. Extreme heat events are significantly linked to physical health risks such as dehydration and heatstroke, alongside an increase in psychological distress and mental health issues. The research explores the complex relationship between climate-induced heat and socio-economic vulnerabilities, emphasizing how limited access to cooling resources exacerbates health crises. By analyzing environmental data and health outcomes, this paper identifies critical thresholds where heat becomes life-threatening. The findings underscore the urgent need for adaptive urban planning and heat-health intervention strategies to protect vulnerable communities from the escalating threats of climate change.