Keeping the skin clean and dry for at least 12 hours each day will prevent severe heat rash. Heat Syncope Heat syncope is characterized by dizziness or fainting while standing still in the heat for an extended period. The condition results from blood pooling in the skin and lower part of the body and the consequent decrease in blood flow to the brain. Heat syncope is the least serious of heat-induced disorders. Its most serious aspect is that it may cause people to fall or injure themselves while operating machinery.
Treatment consists of resting in a cooler environment.
Prevention is based on acclimatization and avoiding long periods of immobility while at wait. Heat Cramps Symptoms include painful cramps or spasms in the legs, arms, or abdomen. The victim will probably sweat heavily. Spasms may occur during work or in the evening after work. Heat cramps are often caused by a temporary fluid and salt imbalance during hard physical work in hot environments.