How is "fatigue" defined in the workplace?

Fatigue in the workplace is fundamentally defined as a physical or mental state resulting from prolonged exertion. This definition encompasses both physical fatigue, which may occur from physical tasks requiring energy, and mental fatigue, which can arise from cognitive demands or prolonged stress. This state is significant because it can impact an individual’s performance, focus, and overall well-being, leading to decreased productivity and increased risk of errors or accidents on the job. Understanding fatigue is crucial for employers to implement strategies that can manage workloads effectively, promote rest, and ultimately enhance employee safety and efficiency in the workplace.

The other definitions provided do not align with the established understanding of workplace fatigue. A lack of motivation to work refers more to an employee's emotional or psychological state rather than physical or mental exhaustion. Excessive resting periods during work could indicate poor workload management but would not define fatigue itself; in fact, proper rest can help mitigate fatigue. Lastly, an increase in overall employee energy contradicts the definition of fatigue, which inherently implies a reduction in energy and performance capacity.