By Laura Forsyth Work is the third biggest cause of stress for UK employees, after lack of sleep and money worries, according to new research. Over two-thirds (70 per cent) of the 1,238 employed adults surveyed by HR software provider Ciphr, identified at least one aspect of work that contributes to their stress levels. Work in general is the biggest cause of stress for around one in three (37 per cent) employees, with workload pressures (35 per cent) coming a close second. Nearly one in four (23 per cent) struggle with long, or inflexible, working hours. While one in five blame their bosses (…