You don’t have to be sweatin’ to the oldies or your favorite Richard Simmons DVD to generate heat. Actions as unconscious as breathing generate heat as part of the metabolism, the process of breaking down food for energy and rebuilding our bodies. Normally, this heat is a good thing, and essential for maintaining our core body temperature of about 98.6 degrees Fahrenheit (37 degrees Celsius).
But heat is not always our friend. Overheating can lead to serious heat-related illnesses, including heat rash, heat cramps, heat exhaustion, and heat stroke.1 This is especially true for people who work warm outdoor climates or hot indoor environments such as foundries, bakeries, boiler rooms, laundries, etc. In these situations, workers need a way to shed excess heat.