# Edinburgh study of 45,500 UK adults links recent sunshine to higher memory test scores

- Published: 2026-11-10 16:45 UTC
- Section: Life & Health › Neurotechnology
- Tags: sunshine and memory, University of Edinburgh, cognitive test scores, verbal fluency, circadian clock, light exposure, cohort study UK, working memory, Photochemical & Photobiological Sciences
- URL: https://realtech.media/news/rt-6ad4365afe552ace0cebafdc_edinburgh_study_of/

**A cohort analysis found that more sunshine on test day and the day before went with better cognitive scores. The effect is modest and the study shows association, not causation.**

![Edinburgh study of 45,500 UK adults links recent sunshine to higher memory test scores](https://realtech.media/media/2026/11/dbcb9e482406b534.avif)
*Futura Sciences*

Researchers Andrew Stevenson and Chris Dibben of the University of Edinburgh looked for a link between recent sunshine and cognitive performance in tens of thousands of Britons. Their study was published on 7 September 2026 in Photochemical & Photobiological Sciences, as reported by Futura Sciences. [1]

The authors matched cognitive test results with regional weather records for the day of testing and the day before. [1] Two cohorts were used: nearly 45,500 people aged 16 and over, tested between 2011 and 2013, and about 11,700 16-year-olds followed in a large study from 1974. [1]

## What the data show

After accounting for temperature and precipitation, greater sunshine went with better memory and verbal fluency scores in adults, and with better reading and mathematics scores in adolescents. [1] The differences are modest and concentrate at low light levels typical of autumn and winter. [1] In other words, it is not bright sun that makes the difference but a lack of light that weighs on performance. The authors say that "relatively low and safe doses of sunlight may matter." [1]

## Limits and possible mechanism

Weather records show what the weather was, not how much time people actually spent outdoors. The study therefore does not prove that going outside improves memory. [1]

One possible explanation is that light helps set the biological clock, which governs wakefulness and sleep, and sleep contributes to memory consolidation, as Inserm notes. [1] Nothing, however, shows that this is the origin of the observed link. [1]

Other work points in the same direction. A review of 62 studies published in 2024 in Biological Psychology concluded that vigilance and working memory, which holds information in mind for a few moments, are among the functions most sensitive to daytime light exposure. Effects vary with conditions and tasks. [1]

## Sources

1. [Futura Sciences](https://www.futura-sciences.com/sante/actualites/memoire-si-meteo-deux-derniers-jours-influencait-votre-memoire-vaste-etude-revele-lien-inattendu-139147)

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Source: RealTech, realtech.media — https://realtech.media/news/rt-6ad4365afe552ace0cebafdc_edinburgh_study_of/