Complimentary CIRCADIAN® white paper:

The Definition of Fatigue

Everyone these days is talking about driver fatigue, employee fatigue or fatigue risk management systems. But what exactly is the definition of “fatigue”?

While engineers use the term to describe the irreversible failure of materials as a result of stresses over an extended period of time, the term is also used to describe human impairment in the workplace or on the highway.

In The Definition of Human Fatigue, Dr. Moore-Ede, one of the world’s leading experts on human fatigue, explains the meaning of fatigue and its causes, including extended wakefulness, heavy work, excessive stimulation, illness or stress. Knowing what exactly is meant by human fatigue is critical to reversing it.

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