A novel study has revealed a link between extreme weather and the risk of cardiovascular disease among middle-aged and older adults in 157 Chinese cities. Based on a city’s climate and location, exposure to extreme heat, cold, and precipitation each increases the risk of heart disease. The findings of the study in the American Journal of Preventive Medicine, published by Elsevier, provide evidence for policymakers across different regions to develop targeted strategies protecting vulnerable populations during extreme climate events.