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Commentary
Health promotion and public health
Daylight and dementia: don’t stop going outside
  1. Carys Bromby1,
  2. Tomas Welsh1,2,3
  1. 1 Research Institute for the Care of Older People, Bath, UK
  2. 2 Older Persons' Unit, Royal United Hospitals Bath NHS Foundation Trust, Bath, Bath and North East Somer, UK
  3. 3 Translational Health Sciences, University of Bristol, Bristol, Bristol, UK
  1. Correspondence to Dr Tomas Welsh, RICE, Research Institute for the Care of Older People, Bath, UK; tomas.welsh{at}nhs.net

https://doi.org/10.1136/ebnurs-2022-103578

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    Commentary on: Ma LZ, Ma YH, Ou YN, Chen SD, Yang L, Dong Q, Cheng W, Tan L, Yu JT. Time spent in outdoor light is associated with the risk of dementia: a prospective cohort study of 362094 participants. BMC Med. 2022 Apr 25;20(1):132. doi: 10.1186/s12916-022-02331-2.

    Implications for practice and research

    • There is no indication to advise changes to current practice on the basis of this study.

    • This study underlines the methodological challenges which face researchers using large data sets.

    Context

    Dementia is a syndrome characterised by progressive changes in cognitive function that are evident in more than one cognitive domain and which interfere with day-to-day life. Dementia can be caused by a number of different conditions but Alzheimer’s disease remains the most commonly diagnosed cause. Despite decades of drug development, there are no effective licensed disease-modifying treatments for Alzheimer’s disease. As a result, there has been focus for some time on potentially …

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    Footnotes

    • Competing interests None declared.

    • Provenance and peer review Commissioned; internally peer reviewed.