Working Outdoors? How can heat-related illness be prevented? Working Outdoors? See OSHA's Campaign to Prevent Heat Illness in Outdoor Workers. Heat-related illnesses can be prevented. Important ways to reduce heat exposure and the risk of heat-related illness include engineering controls, such as air conditioning and ventilation, that make the work environment cooler, and work practices such as work/rest cycles, drinking water often, and providing an opportunity for workers to build up a level of tolerance to working in the heat. Employers should include these prevention steps in worksite training and plans. Also, it’s important to know and look out for the symptoms of heat-related illness in yourself and others during hot weather. Plan for an emergency and know what to do - acting quickly can save lives!. See more from topic source: https://www.osha.gov/html/a-z-index.html.