How should the mine manage heat stress and worker fatigue?

• A. Increase shifts to complete tasks faster.
• B. Provide rest breaks, hydration, cooling measures, and adjust rosters to limit exposure.
• C. Rely on self-monitoring without breaks.
• D. Only provide cooling if temperatures exceed threshold.

Answer: (B)

Managing heat stress and fatigue relies on a proactive, layered approach that reduces heat load and supports workers to recover. The best approach combines rest breaks, hydration, cooling measures, and roster adjustments to limit exposure. Regular breaks give the body time to shed heat and recover from exertion; staying hydrated maintains blood volume and supports sweating, which helps regulate temperature; cooling measures like shaded rest areas, fans, cooling devices, and easy access to cold drinks directly reduce body heat and make work safer and more comfortable; and adjusting rosters—rotating workers, spacing high-heat tasks, and sequencing work to cooler periods—keeps exposure within safer limits and helps workers acclimatize. Together, these steps prevent heat-related illness and maintain performance. Increasing shifts would raise heat exposure and fatigue; relying on self-monitoring without breaks isn’t reliable and can miss early signs of heat strain; cooling only when a threshold is reached is reactive rather than protective.