What triggers heat exhaustion?

Heat exhaustion is primarily triggered by exposure to high temperatures, particularly when combined with high humidity and prolonged physical activity. When the body is unable to effectively dissipate heat, it can lead to an overheating of the body and various symptoms associated with heat exhaustion. The correct answer emphasizes that temperatures greater than 80°F (27°C) can create conditions that contribute to heat-related illnesses, particularly in scenarios involving physical exertion or inadequate hydration.

This is particularly important for first responders and those in leadership roles, as being aware of environmental factors that lead to heat exhaustion can inform decisions about personnel safety, operational planning, and ensuring that measures for hydration and rest are in place during warmer weather conditions. Understanding temperature thresholds is essential for preventing heat-related illnesses in both emergency settings and regular activities.