The human body is so intricate. The integration of teeth, gums, tongue and saliva is an incredible feat of anatomical and physiological design. Decide that you are willing to take the pain of thinking, of being aware, all day long. Whenever you pursue a specific goal, it should be without interruption. It's actually better to study for one hour straight, than for two hours with interruptions.
Interruptions break our train of thought and limit our ability to retain information.
They take the power out of learning. Set aside a certain time when you block everything else out, where you will not budge from the activity you're focusing on. Don't sit down and then get up to open the window. Then get up to fetch a Coke. And get up again to close the window.