Give the victim a warm, non-alcoholic drink. Allow another person in the sleeping bag to share body heat. Exhale warm air near the vicinity of the patients mouth and nose. Heat cramps may occur and should be treated by moving the victim to a shady area and supplying water and salt tablets. Heat exhaustion is a mild form of hyperthermia and includes symptoms such as headache, dizziness, fainting, clammy skin, blurred vision, nausea and vomiting.
Treatment is the same as heat cramps.
Heat stroke is the most serious degree of hyperthermia. The victim will have little or no perspiration, a hot and flushed face, full pulse, and become either apathetic or aggressive. Cool the victim as quickly as possible paying extra attention to the head, neck and chest. If the bodies temperature continues to rise, unconsciousness, delirium, convulsions and ultimately death may occur. To avoid hyperthermia, avoid strenuous activity on hot days, wear loose clothing and a hat, drink plenty of fluids and take salt tablets.