Glasses To Prevent You From Sleeping

You've probably seen these on other blogs already: new eyeglasses that alert you if you're falling asleep.  Study aid or new torture device?

Designed to assist those cramming for exams or going on a long drive, they work by detecting what angle the bespectacled user’s head is at. If the head drops below a certain level, a little motor kicks-off to vibrate the earpiece and no doubt scare the crap out of whoever is wearing them. The glasses can be set to go off at one of four levels of head-droop.

Link: Plastic Bamboo : Vision Optic MyDo Bururu sleep warning glasses.

Note that one of the suggested uses is while driving... yikes.