Analysis reveals that inadequate ventilation in older buildings and insufficient public health protocols contributed significantly to the mortality rate during the heatwave. As global temperatures rise, heat is becoming the deadliest weather hazard, yet public health systems remain under-resourced for heat-specific interventions. Lessons from successful cold-weather responses, such as vulnerability mapping and tiered alert systems, can inform strategies to mitigate heat-related risks. Countries like France and Spain have implemented effective heat-health warning systems, demonstrating that structured responses can significantly reduce heat-related fatalities.