What is the impact of dehydration on workplace performance?

• A. Dehydration has no impact on performance.
• B. Dehydration slightly improves concentration.
• C. Hydration status only matters during physical activity.
• D. Dehydration can increase the risk of errors and injuries.

Answer: (D)

Hydration status directly affects both brain function and physical performance. Even mild dehydration can slow reaction times, degrade attention and concentration, impair working memory and decision-making, and reduce coordination. In workplace tasks, this combination means more errors and a higher risk of accidents or injuries, especially when safety, precision, or quick responses are required.

This is why the statement that dehydration can increase the risk of errors and injuries is the best answer. The other options don’t fit because dehydration does have a real impact on performance, it does not improve concentration, and hydration matters for cognitive tasks as well as physical activity, not only during strenuous work.