In this issue of Occupational Medicine.

Eight years ago, Occupational Medicine published Waddell and Burton's evidence-based occupational health guidelines for the management of low back pain at work [1]. This work remains one of the most frequently cited and accessed papers we have published. In this issue, Kim Burton and colleagues publish their evidence-based review of the management of work-relevant upper limb disorders and it will be interesting to see if it has a similar impact [2]. Occupational physicians will welcome the evidence-based findings and the clarity brought to bear on a problem we encounter on a daily basis even if the main findings have a familiar ring to them: upper limb disorder is very common but hard to diagnose and classify; workplace psycho-social factors and individual psychological factors are important and may be as important as physical exposure factors in causation and determining outcome; there is strong evidence that programmes using cognitive–behav-ioural approaches are effective whereas the evidence for ergonomic interventions is not as strong. In 2001, the back pain guidelines represented a major watershed in occupational health practice and in 2017 we may be writing the same thing about the upper limb disorder guidelines. Last year, Occupational Medicine carried an in-depth review on doctors' health and fitness to practise [3]. With revalidation looming, this is once again a topical subject, and Ruth Chambers and her colleagues consider this in an editorial [4]. As well as the implications for us as practising doctors, there may be implications for some of us called on to assess and advise on the fitness to practise of clinicians referred under the new revalidation procedures. Many of those referrals will be for mental ill-health and in this issue there are two research papers on the mental health of doctors, one of which also examines its impact on fitness to practise. Using the Maslach Burnout Inventory, Toral-Villanueva and colleagues [5] found a burnout prevalence of 40% in 312 junior hospital doctors in Mexico. Burnout was most strongly associated with working 12 hour shifts and a history of current or previous depression. Those doctors who reported burnout were five times more likely to report suboptimal patient care practices on a weekly basis. In the second piece of research regarding the mental health of doctors, Miller [6] carried out a questionnaire survey of 116 members of the Doctors Support Network (DSN), a peer support group for doctors who have experienced , or are …