A boss with mood swings may be worse for your health than someone who's always nasty
Not being able to predict how the boss is going to react can affect your productivity.

Not being able to predict how their boss is going to act towards them has a detrimental effect on the productivity of workers, researchers said.
Far from the stereotypical view that ruthless and unsympathetic managers cause the greatest issues for employees, researchers from the University of Exeter in the UK showed that bosses who switch between being friendly and severe at the drop of a hat are actually most damaging.
Experts found even a poor but consistent relationship with managers was better for workers than one that was influenced by mood swings.
(Image: Thinkstock)
Academics measured how "ambivalent" staff felt about their manager - to what extent they had both positive and negative views about them.
"The focus is usually on trying to work out if relationships between staff and bosses are good or bad, but they can sometimes be both, and it is important to measure that," said Allan Lee, from University of Exeter in the UK.
"Bosses reward and punish their workers, and this has an impact on self-esteem. If their staff have to adopt different roles at different times because they have a manager who can be both nasty and nice they view him or her in an ambivalent way," Lee said.
"This makes it hard to trust them. This creates negative emotions and makes staff feel anxious, causing poor performance at work," he added.
Researchers carried out four surveys in three companies - two in the UK and one in India, asking what they thought about their bosses and how they performed in different tasks.
The 320 staff who took part worked in a service centre, providing telephone-based customer service support or outsourced human resources services and other business tasks.
A total of 60 teams of staff were examined, they shared a single supervisor but worked independently of each other.
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