Evid Based Med 17:193-194 doi:10.1136/ebmed-2012-100649
  • Aetiology

Night shift work increases the risk for type 2 diabetes

  1. Sampsa Puttonen2
  1. 1Clinical Neuroscience, Division of Psychology, Karolinska Institute, Stockholm, Sweden
  2. 2Finnish Institute of Occupational Health, Helsinki, Finland
  1. Correspondence to John Axelsson
    Karolinska Institute, Department. of Clinical Neuroscience, Division of Psychology, 17177 Stockholm, Sweden; john.axelsson{at}

Commentary on:


As a result of the rapidly evolving 24-h society, about 15–30% of the workforce works outside normal business hours, with about half of them working night shifts. Any shift worker knows that night work compromises cognitive capacity and challenges the physiological need for sleep and recuperation. It is not surprising therefore that night shift work relates to a variety of health problems, including sleep disturbances, gastro-intestinal disorders, cancer and a number of metabolic disorders such as obesity, the metabolic syndrome, cardiovascular disease and type 2 diabetes.1 However, many previous studies have not fully captured the relationship between these health problems and shift work exposure. …

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