The woodworkers at a mill noticed something peculiar. The speed of their production line seemed to be increasing through the week, starting at a moderate pace on Monday and accelerating to a speedy pace by Friday.
And the levels of their stress hormones rose along with the speed.
This research, done some years back, revealed that as stress hormones rose day by day, their levels stayed high through the night. They did not drop until the weekend.
Meanwhile the mill workers started drinking more and spent more hours at night locked in TV-watching. They stopped socializing with their families and friends.»