The obvious application for such a product is protection from falling asleep while driving or opwerating machinery. But being able to track when people are falling asleep in class might also help educators! OK, I'm kidding, a bit, though I will say that I have a tough time staying awake in classrooms and lectures - I'm not sure what it is, whether it's the content or the heat of the room or the many people using all the available oxygen. And it's not simply because I'm old - ever since I was a student I've had trouble with this. There have been some studies on this phenomenon - I know I'm not alone - but I've never seen anything definitive.
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