If you feel anxious while at the wheel, you are more likely to feel exhaustion when you arrive at your destination, a new study reports.
Lonely people are 24 percent more likely to feel tired and have a harder time concentrating, a new study reports.
Habitual short sleepers might be more efficient sleepers, but also more tired than they realize, a new study reports.
Extended intense cognitive work causes potentially toxic byproducts to build up in the prefrontal cortex. This alters control over decision-making, causing a shift toward low-cost actions that require less effort as cognitive fatigue sets in.