In seriously hot temperatures, it is important to minimize physical activity, drink plenty of cool water, and use fans, AC, or open windows where possible to help keep your home's internal temperature cool. Use thermal curtains to help block out the sun's rays throughout the day, and open higher-up windows in your home, such as in the attic, to let hot air that rises escape more easily. You may also want to consider a dehumidifier if you are finding it difficult to sweat. Most importantly, if you feel like you are in danger from the heat, contact friends, family, or professionals who may be able to come to your aid.