There are numerous precautions that employers can take against heat stress. Train workers and supervisors in how to control heat stress and to recognize symptoms of heat illness. Monitoring and Adjusting Workloads. Take into account the weather, workload, and condition of the workers, and adjust work practices accordingly. Higher temperatures, high humidity, direct sun, heavy workloads, older workers, and workers unaccustomed to heat are more likely to become ill from heat.
Halt work altogether under extreme conditions.
Make sure employees drink at least the minimum required amounts of water to replace body fluid lost through sweating. Thirst does not give a good indication of how much water a person needs to drink.