Water. Rest. Shade to protect professional workers from heat. Every year, many workers die and become ill while working in hot or humid conditions. Age or physical condition can affect anyone. Under the law, a risk-free workplace is the employer’s responsibility. This includes providing water, rest, and shade to the workers. Gradually increase the workload of new or returning employees and create tolerance for working in the heat. Planning for emergencies and training personnel in prevention. Monitoring staff for signs of illness.