In Southeast Asia, annual heat-related mortality is projected to increase by 295% by 2030 if there is no adaptation. To strengthen heat adaptation in Malaysia, Professor Tin Tin Su and her team will evaluate simple behavioural and structural interventions that have the potential to protect vulnerable communities from the health effects of extreme heat. They will introduce interventions that will improve heat health literacy and fluency for individuals and communities and test a passive cooling technology to decrease indoor exposure to extreme heat.