Hot environments can be found in any climate during any time of the year. In addition to people who work outdoors, people who work in foundries, glass or ceramic plants, laundries, mines, bakeries, etc. are exposed to high heat on a regular basis. Heat has effects on how the body functions. Overexposure to heat can cause: fatigue, heat rash, fainting, muscle cramps, heat exhaustion, and heat stroke. According to the National Weather Service, about 175 Americans die from overexposure to summer heat each year. Some people are more susceptible to the effects of heat. Before you conduct training, you will want to assess the heat hazards in your workplace. This includes monitoring the environment and evaluating the employees' work loads.