ROBERT GREENE

A paper published in 2009 called "Mental fatigue impairs physical performance in humans" showed that if the people do something that causes mental fatigue (computer games in this case) and then exercises, the perception of effort during physical exercise seems much higher than if there was le...

It’s important to be aware of what state of mind you’re in before tackling a hard choice.

Decision fatigue happens when the mental energy required to weigh the tradeoffs of our decision becomes too much for us to handle. 

Drastic or too-strict diets can trigger mood swings, headaches, physical and mental fatigue, irritability, digestive upset, and brain fog. Too few calories and too little carbs seem to be the biggest culprits. 

Build in an extra snack, increasing portions, or adding back som...