Check out this fantastic article on decision fatigue in the New York Times. It addresses a lot of things I’ve been interested in lately, like blood sugar levels and self-control. I think this is a really useful topic for learning folks to be aware of, because we frequently ask our learners to exert self-control to stay focused and concentrate on the subject matter being taught.
Julie Dirksen is a leading expert in instructional design, elearning, and behavior change. She's a frequent speaker at industry events, an eLearning Guild Guild-master, and the author of one of the bestselling books on instructional design, "Design for How People Learn."