Why is it so hard to stay awake in class?

Jason Rihel - Yeah, so that's a very good question and I see it in my students and I see it among the faculty when they have a seminar at even once that they are particularly interested in. I think it's a combination of sleep deprivation. So, you're not sleeping perhaps enough and then during a lecture, you're getting a period of quiet restfulness. Maybe the lights go down, and those are all being triggers to say, "Hey, maybe you should go to sleep now. You didn't get enough sleep last night."