Something to try is to accept the lack of focus, and when it happens, just switch to skimming. One of two things will happen: you'll realize the information isn

Something to try is to accept the lack of focus, and when it happens, just switch to skimming. One of two things will happen: you'll realize the information isn't that important or interesting, or something will catch and you'll become re-engaged. In the first case, you can always revisit the material in the future, if you come across a situation where it seems like it might be useful.