Going non-stop is very counterproductive. I am far more productive when I remember to take a break between tasks.
But I think it goes beyond that. In some ways I am most productive during those breaks. Those are the moments when I have time to think, and to figure out what I should really be doing and why.
Just today I can upon the below quote, which well describes this phenomenon. Words to live by:
“Almost everything will work again if you unplug it for a few minutes, including you.” – Anne Lemott