http://ideas.eyeconx.net/story.php?title=you-are-feeling-sleepy--and-we-can-tell The speed and degree to which the pupil of the eye responds is a standard test for alertness. It has also been used to assess how sleepy or exhausted a person is. Now, research to be published in the International Journal of Bioinformatics Research and Applications suggests that measuring pupil response alone is not enough and that a person's rate of blinking should also be incorporated to obtain ... Fri, 28 Dec 2012 17:07:12 EST en