ABSTRACT
It is really idle to inquire whether fatigue is specific or general-whether, that is, continued work at one function diminishes efficiency in only it, or in all functions equally. We do not have to choose between these alternatives. The first is almost always, and the latter always, false. It is a separate problem to tell for any given loss in efficiency of any function due to its exercise without rest just what the effect upon every other function will be. Some functions will suffer little or not at all; others, much. The real questions are: "How much does continued work at anyone or any combination of tasks diminish efficiency for any other task?" and "How does it?"
