Really a great informative article. I personally, use Pomodoro technique, and it works like a charm. If anybody willing to try this method, I would suggest you download Pomodoro apps, there are tonnes of such kindda apps on the store. Best interval pattern to follow is 25-5-25-5-25-5-25-15.

Means, take 5 minutes of break after every 25 minutes of work. And once you completed 4 sets of 25 minutes, take a long break of 15minutes.

Do note that, spend those leisure time in burning your stress. You could try listening to your fav. music or take a walk around your home/working space. Don't think anything about the work during that time so that you can comeback to work with refreshment and all energetic.