Thermal fatigue
The inability of the circulatory system and the thermal control device to keep pace with the rise in body temperature is a result of physical exertion in hot weather.
Symptoms
include high heart rate, low sweating, a decrease in the amount of saliva with severe fatigue and dizziness.
Management
Stop exercising and transfer the injured to a cool, shady place and cool the body by drinking fluids, moisturizing the body and providing good ventilation to the injured part. In the event that the symptoms do not disappear, the patient must be transferred to the nearest medical center.