The NASUWT have an interesting booklet about stress in the workplace. One of the headline figures that stood out to me was that 69% of respondents to a union-wide survey reported work-related stress, and an astonishing 31% of these led to time off work. In a sense this shouldn't surprise us, but it really is shocking how prevalent stress-related illness is, and how little support there is out there for teachers. This article on the NASUWT website talks about the Health and Safety Executive's Stress Management Standards (click here for them). Stress is the kind of thing we all have an intuitive understanding of, and often stress can improve performance, but it's useful to have an 'official' definition of stress to work with - and to ask ourselves: "at what point does the stress of the workplace become harmful?"