Posted by R. Berg on July 11, 2003
In Reply to: Graveyard Shift posted by Lewis 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.
: I think you are close - but not quite right. I think that the statistic is that more people die of natural causes at 4 a.m. or thereabouts than at any other time of day. I think the expression came from that - probably either from nursing or the emergency services who would be called out to the recently corpsed. I think it may also have a derivation from "quiet as the grave". I'm sure that it did not refer to people dying because they worked at that time, but I could stand to be corrected.
We've discussed "graveyard shift" before. See the archived post
I don't see that we need to look to mortality rates to explain why the graveyard shift is called that. It's the third shift, the last shift of the day. That position as the end of something could associate it with death (it was once called the dying shift). It takes place in quiet, more or less, and dark. That would help too.