Graveyard Shift

Posted by Denise wallace on July 11, 2003

Does anyone know where this phrase came from? I think it means that people who used to work night hours became so sleep deprived that they literally droped dead from exhaustion. Being that the world operates from 9 to 5 most people have difficulty adjusting to sleeping during the day and usually have business they need to take care of, therefore causing them to develope bad health from the lack of sleep, thus ending up in the graveyard.