Professor of Ergonomics and Director, Centre for Ergonomics, Occupational Health and Safety School of Public Health, College of Health, Massey University Bio Stephen is Professor of Ergonomics and Director of the Centre for Ergonomics, Occupational Health and Safety in the School of Public Health, College of Health at Massey University based at Palmerston North, New Zealand. He has 35 years of experience in industrial and military human factors and environmental physiology research, education and consultancy in UK, USA and New Zealand. His main contributions are in respiratory health, load carriage, musculoskeletal disorders, environmental ergonomics, aviation and military physiology, sailing science, anthropometry, ergonomics in schools, professional certification and participative interventions in small businesses. He has published over 120 scientific papers in peer reviewed journals and has recently guest edited two journal special issues on ergonomics and occupational health and safety in small businesses. His main current research interests are: Mitigation of the combined effects of multiple mild stressors (e.g. hypoxia, dehydration, jetlag, sleep disturbance, etc) on complex cognitive (executive) and job performance; Realist analysis of national musculoskeletal discomfort prevention programmes, and; strategies for reducing sedentariness.