Not enough programmers/founders/workers exercise this principal.<p>Our mind pushes us to believe that hours worked = productivity. But time after time this has been disproved when work is to be sustained over long periods of time[0]<p>Once you learn this; it will help you so much as a programmer.<p>TLDR
If your having trouble with bug/feature - have a nap or go for a bike ride.<p>[0]: <a href="http://www.cnbc.com/2015/01/26/working-more-than-50-hours-makes-you-less-productive.html" rel="nofollow">http://www.cnbc.com/2015/01/26/working-more-than-50-hours-ma...</a>