Stress is top concern for union safety reps . Teleworkers' stress . Doubts about debriefing . Sickness absence nudges two million days a week, says LFS . Teachers retire early due to "psychiatric disorders" . Phased returns for absent employees . Local government absence stable at 4.2% . Queen's Speech heralds draft Safety Bill . New national OH strategy is on target, says HSC . News in brief . Recently published . Health and safety digest