by 
| Fatigue | Boredom |
| Physiological depletion | Mental dullness |
| Decreased capacity for work | Decreased interest in work |
| Conscious inability | Feeling of incapacity |
| Result of too much work challenges | Result of absence of work challenges |
| Spirit is willing but the flesh is weak | Flash is willing but the spirit is weak |
| Desire for rest | Desire for change |
| Somewhat measurable | Difficult to measure |
