About the Authors

Gareth Hagger-Johnson

g.hagger-johnson@ucl.ac.uk

Affiliation Department of Epidemiology and Public Health, University College London (UCL), London, United Kingdom

Ian J. Deary

Affiliation Department of Psychology, Centre for Cognitive Ageing and Cognitive Epidemiology, University of Edinburgh, Edinburgh, United Kingdom

Carolyn A. Davies

Affiliation Medical Research Council (MRC)/Chief Scientist Office (CSO) Social and Public Health Sciences Unit, University of Glasgow, Glasgow, United Kingdom

Alexander Weiss

Affiliation Department of Psychology, Centre for Cognitive Ageing and Cognitive Epidemiology, University of Edinburgh, Edinburgh, United Kingdom

G. David Batty

Affiliations Department of Epidemiology and Public Health, University College London (UCL), London, United Kingdom, Department of Psychology, Centre for Cognitive Ageing and Cognitive Epidemiology, University of Edinburgh, Edinburgh, United Kingdom

Competing Interests

The authors have declared that no competing interests exist.

Author Contributions

Conceived and designed the experiments: GH. Performed the experiments: GH. Analyzed the data: GH GB. Wrote the paper: GH ID CD AW GB.