A recent report in Nature Medicine revealed that over 47,000 Europeans died from heat-related causes in 2023, the hottest year on record. However, the study suggests that without heat adaptation measures, the death toll could have been 80% higher. The research used publicly available death records from 35 countries and highlighted the importance of measures such as health care advances, air-conditioning, and public information to mitigate heat-related deaths. The study emphasized the urgent need to address climate change as a health issue and recommended policy-level changes to reduce vulnerability to heat. Additionally, it pointed out the importance of evaluating adaptation strategies and differences between countries to effectively address the growing impact of heat waves on public health.