You need to be able to reset to zero. Think about it... as you tire, the quality of your work declines. That's obvious. Taken far enough, you can become counte

You need to be able to reset to zero. Think about it... as you tire, the quality of your work declines. That's obvious. Taken far enough, you can become counterproductive, making so many expensive mistakes that you'd have gotten more done by not working at all. But rest resets our bodies and energy, right? But what if you don't get enough rest to reset? Then you're starting the next day still carrying the debt of yesterday's overwork. You're not as productive as you should be.