[Indoor environment and heatstroke risk].

This paper describes the outline of heatstroke risk evaluation model for aged residents based on surveys done by the Heatstroke Surveillance Committee of Japanese Association for Acute Medicine and field measurements of indoor air temperature, humidity and so on. To reduce heatstroke of aged residents, promotion of thermal insulation, sun-shading, cross ventilation, air-condition of houses and living behavior of residents are needed.