The first systematic treatment of fatigue for sixty years, putting forward a new theory of its origins and functions.The first systematic treatment of fatigue for over 60 years, radically reconfiguring the landscape of the subject. By casting fatigue in the role of an emotion, this book provides a new framework for thinking about it as a mechanism for managing competing activities and discouraging over-commitment to unrewarding goals.The first systematic treatment of fatigue for over 60 years, radically reconfiguring the landscape of the subject. By casting fatigue in the role of an emotion, this book provides a new framework for thinking about it as a mechanism for managing competing activities and discouraging over-commitment to unrewarding goals.Fatigue can have a major impact on an individual's performance and wellbeing, yet is poorly understood, even within the scientific community. There is no developed theory of its origins or functions, and different types of fatigue (mental, physical, sleepiness) are routinely confused. The widespread interpretation of fatigue as a negative consequence of work may be true only for externally imposed goals; meaningful or self-initiated work is rarely tiring and often invigorating. In the first book dedicated to the systematic treatment of fatigue for over sixty years, Robert Hockey examines its many aspects - social history, neuroscience, energetics, exercise physiology, sleep and clinical implications - and develops a new motivational control theory, in which fatigue is treated as an emotion having a fundamental adaptive role in the management of goals. He then uses this new perspective to explore the role of fatigue in relation to individual motivation, working life and wellbeing.1. The problem of fatigue; 2. Changing experiences of fatigue: the social-historical context; 3. The work-fatigue hypothesis; 4. Stress, coping and fatigue; 5. Effort, strain and fatigue; 6. A motivation control theory of fatigue; 7. Extensions anl#²