Decades of work from multiple different subfields within psychology all point toward the conclusion that regularly resting your brain improves the quality of your deep work. When you work, work hard. When youre done, be done. Your average e-mail response time might suffer some, but youll more than make up for this with the sheer volume of truly important work produced during the day by your refreshed ability to dive deeper than your exhausted peers.

Deep Work by Cal Newport