Extreme heat causes 658 deaths a year in the United States. That’s more than tornadoes, hurricanes, floods, and lightning combined. The Centers for Disease Control and Prevention urges Americans to take measures to stay cool, remain hydrated, and to keep informed. When the weather gets extremely hot, body temperatures can rise, causing brain damage, organ damage, and even death. When the human body cannot compensate and cool itself properly, it is more susceptible to heat-related illness. 69% of deaths from heat exposure occur at home, and in 91% of these homes there is no air-conditioning. Most of the victims live alone or are unmarried and 72% of them are male.
Centers for Disease Control and Prevention, June 2013