Sometimes we get that moment where nothing seems to be flowing writing wise. It's commonly referred to writer's block. It's an obvious malady that many writer's experience and suffer.
There's a simple solution. You need to get the blood flowing to your brain. Therefore it's essential for you to take a walk. It does solve a number of the problems regarding writer's block.
There are times where I do this and the writing can't flow fast enough from my fingertips.
So next time you have trouble with writing, remember it's a good idea to take a walk. You'll find that ideas will flow a lot faster and more importantly a lot freer.