The objective of this study was to investigate whether attitudes toward energy utilization such as airconditioning (cooling and heating) and energy conservation behaviors are related to recognition of health risk of heatstroke/heat shock and implementation of measures against them. In this study, we conducted a secondary analysis of 3,066 respondents who answered the questionnaire survey on lifestyles of inhabitants in the former TEPCO supply area implemented in February 2018. As the results of logistic regression analysis, it was shown that house construction year, attitudes towards health, attitudes towards cooling and heating, and energy conservation behavior had relationships with recognition of health risk of heatstroke/heat shock and implementation of measures against them. Also, it was shown that heatstroke and heat shock are different in the way of association. On the other hand, due to the limitations of available data, the consideration was not sufficient. In the future, it is necessary to refine the items and methods so that more specific examinations can be made, and to plan more specific policies for promoting actual implementation of measures against heatstroke and heat shock.