It takes you 15 consecutive minutes of focus before you can fully engage in a task. Once you do, you fall into a euphoric state of increased productivity called flow. Research shows that people in a flow state are five times more productive than they otherwise would be. When you click out of your work because you get an itch to check the news, Facebook, a sport's score, or what have you, this pulls you out of flow. This means you have to go through another 15 minutes of continuous focus to reenter the flow state. If you click in and out of your work enough times, you can go through an entire day without experiencing flow