One study found that when we continually switch between tasks, our work takes 50 percent longer, compared with doing one task from start to completio… - Chris Bailey

the more aversive (unattractive) a task or project is to you, the more likely you are to put it off.

Time pressure narrows our focus on the task, restricting us from considering a number of more creative ways to complete it. We don’t question our approach as much, because we haven’t stepped back to consider the alternatives. This makes it easier to switch.

By removing every object of attention that’s potentially more stimulating and attractive than what you intend to do, you give your brain no choice but to work on that task.