Most people worry about work while they are on holiday and fear for their job when they are away from the office.

A survey of 1,800 workers by employment law firm Peninsula found many found it difficult to relax when they had a break, highlighting a "growing problem" of over-working.

Peninsula claimed some bosses gave people more work to do just before they went on holiday or did not consider people for promotion if they weren't in the office at the time.

"There is no reason workers should fear for their job while on holiday," said Peter Done, managing director of Peninsula.

"If bosses take action while people are away from the office, they may well be inciting damaging litigation cases."