Word: microsleep
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Dates: during 2004-2004
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...first sign that you're not so awake as you think. After about 18 hours without sleep, your reaction time begins to slow from a quarter of a second to half a second and then longer. If you're like most people, you will start to experience bouts of microsleep--moments when you zone out for anywhere from two to 20 seconds and drift out of your lane or find that you have to keep rereading the same passage. Your...
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