About the Authors

Anna Wikman

anna.wikman@ki.se

Affiliations Psychobiology Group, Department of Epidemiology and Public Health, University College London, London, United Kingdom, Upper Gastrointestinal Research, Department of Molecular Medicine and Surgery, Karolinska Institutet, Stockholm, Sweden

Jane Wardle

Affiliation Health Behaviour Research Centre, Department of Epidemiology and Public Health, University College London, London, United Kingdom

Andrew Steptoe

Affiliation Psychobiology Group, Department of Epidemiology and Public Health, University College London, London, United Kingdom

Competing Interests

The authors have declared that no competing interests exist.

Author Contributions

Conceived and designed the experiments: AS JW. Performed the experiments: AW AS JW. Analyzed the data: AW AS. Wrote the paper: AW AS JW.