There are workaholics, AND there are smart workers.
You see, working longer hours doesn't necessarily mean greater productivity. It's really about working smarter.
Here's the hack:
In a study done at the Florida State University, elite performers like athletes, musicians, actors, and chess players were tested for productivity. It found that the best performers "typically practice in uninterrupted sessions that last no more than 90 minutes." In fact, they "rarely work for more than four and a half hours in any given day."
Okay, not everyone has the luxury to work just 4.5 hours a day, but there is still something to be learned here.
The core of this hack is the principle of renewal and recovery. The performers did not have to work or practice too long - they must stop up to a certain point to ensure that they avoid exhaustion; they must exert effort only to a degree that they can ensure that can recover on a daily or weekly basis, depending on what the activity requires.
Employing this principle makes them perform better overall.