Seeing or experiencing bullying in the workplace could have links to sleep disorders, according to a new study.
The research showed that the incidents of men having disturbed sleep was 60 per cent for those who had seen hostile behaviour going on, while it was 20 per cent higher in women in the same circumstances.
For those who had been the subject of some form of intimidation, it was more than two times as likely for a man to report disturbed sleep and nearly twice as likely for women.
Dr Isabelle Niedhammer, the principal investigator for the project at University College Dublin, which was established in 1854, said: "Our study underlines the need to better understand and prevent occupational risk factors, such as bullying, for sleep disorders."
The study was undertaken in 2004 in the south-east of France and bullying was defined using the Leymann Inventory of Psychological Terror.
A sleep disturbance can be defined as having trouble going to sleep or getting back to sleep when woken up.