This overview of fatigue includes fatigue definitions, the measurement/assessment of fatigue and the performance, mood and safety problems associated with fatigue in the operational setting. The physiological bases of fatigue are discussed, so the reader understands that fatigue is a physiological phenomenon that is not "just a state of mind". Finally, scientifically valid countermeasures are discussed and data from a variety of sources are included to provide readers with a "toolbox" from which they can choose solutions to fatigue related problems. This book is meant to be a "user-friendly" book, not a scientific book, although science is included to help the reader understand why certain behaviours occur.
