This is because workers who are new to working in warm environments may not be acclimatized to heat. Dress the partProtective clothing is one of the best ways to stay cool while working in the heat. Keep an eye out for the warning signs and act fast in the event of heat stroke, heat exhaustion and heat cramps. Heat exhaustion is the body’s response to dehydration. Heat cramps occur when your body sweats out too much salt and can also be a sign of heat exhaustion.