Strengthening the links between research and interventions would mean new insights could be translated more quickly into actions to protect and promote population health. Doing so requires strong collaboration among funders, the research community, and stakeholders, to understand stakeholder needs, constraints, and opportunities, and to focus research questions so results are useful, useable, and used. Continuing increases in the frequency, intensity, and duration of heatwaves underscores the urgency of fostering two-way communications between researchers and those responsible for designing and implementing heat action plans, to ensure research is effectively targeted to further reduce heat-related morbidity and mortality in a changing climate.