The Dangers of Extreme Heat

Heat can kill by pushing the body beyond its limits. Under normal conditions, the body’s internal thermostat produces perspiration that evaporates and cools the body. However, in extreme heat and high humidity, evaporation is slowed and the body has to work much harder to maintain a normal temperature. Most heat related problems occur because someone has been over exposed to heat or has over-exercised for their age or physical condition. The elderly, young children, and those who are sick or overweight are more likely to be affected extreme heat. Conditions that can cause heat-related illnesses include no air movement, and poor air quality. People living in urban areas may be at greater risk from the effects of a heat wave than those living in more rural areas. Another contributing factor is that asphalt and concrete store heat longer and gradually release heat at night, which can produce higher nighttime temperatures known as the “urban heat island effect.”

Some things you can do to beat the heat:
• Install window air conditioners snugly, insulate if necessary.
• Close any floor heat registers nearby and use a circulating or box fan to spread cool air.
• Check air-conditioning ducts for proper insulation.
• Install temporary reflectors, such as aluminum foil covered cardboard, to reflect heat back outside and be sure to weather-strip doors and sills to keep cool air in.
• Cover windows that receive morning or afternoon sun with drapes, shades, awnings or louvers. Outdoor awnings or louvers can reduce the heat that enters a home by up to 80 percent.