ArticleClocks & sleep2020
The Role of Daylight for Humans: Gaps in Current Knowledge.
Article in Clocks & sleep, 2020. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 42 papers.
What it found
Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.
The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.
The trial behind it
Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.
Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.
Who cites it
42 citing papers in PubMed.
- The influence of bright and dim light on substrate metabolism, energy expenditure and thermoregulation in insulin-resistant individuals depends on time of day.Diabetologia · 2022Trial
- Trial
- Early chronotype with advanced activity rhythms and dim light melatonin onset in a rural population.Journal of pineal research · 2020Trial
- Daylight, Daily Rhythms, and Downstream Physiology: A Translational Study in Diurnal Nile Grass Rats (Journal of biological rhythms · 2026Article
- The Circadian-Light-Hygiene Hypothesis: A Potential Modulator of Fertility and Birthrate Trends.Biology · 2026Review
- Family History and Solar Insolation in Bipolar I Disorder.Acta psychiatrica Scandinavica · 2026Article
- Simulated natural daylight and twilight modulate activity and light sampling behaviour in mice.BMC biology · 2026Article
- Afternoon to early evening bright light exposure reduces later melatonin production in adolescents.Npj biological timing and sleep · 2025Article
- Childhood Myopia Part II: Treatment Mechanisms, Emerging Options, and Considerations.Investigative ophthalmology & visual science · 2025Review
- Perceived indoor annoyances at home and risk of incident depression: A Danish register-based cohort study, 2000-2018.Environmental epidemiology (Philadelphia, Pa.) · 2025Article
- Characteristics of objectively-measured naturalistic light exposure patterns in U.S. adults: A cross-sectional analysis of two cohorts.The Science of the total environment · 2025Article
- Living in Biological Darkness II: Impact of Winter Habitual Daytime Light on Night-Time Sleep.The European journal of neuroscience · 2025Article
- Wearable Light Loggers in Field Conditions: Corneal Light Characteristics, User Compliance, and Acceptance.Clocks & sleep · 2024Article
- Article
- Article
- Light exposure during sleep is bidirectionally associated with irregular sleep timing: The multi-ethnic study of atherosclerosis (MESA).Environmental pollution (Barking, Essex : 1987) · 2024Article
- The sleep-circadian interface: A window into mental disorders.Proceedings of the National Academy of Sciences of the United States of America · 2024Review
- Article
- Postoperative cognitive dysfunction: spotlight on light, circadian rhythms, and sleep.Frontiers in neuroscience · 2024Review
- Metadata recommendations for light logging and dosimetry datasets.BMC digital health · 2024Article
Corrections and comments
PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.
Authors and funding
10 authors.
Funding
No grant is acknowledged in the PubMed record.
Abstract
Daylight stems solely from direct, scattered and reflected sunlight, and undergoes dynamic changes in irradiance and spectral power composition due to latitude, time of day, time of year and the nature of the physical environment (reflections, buildings and vegetation). Humans and their ancestors evolved under these natural day/night cycles over millions of years. Electric light, a relatively recent invention, interacts and competes with the natural light-dark cycle to impact human biology. What are the consequences of living in industrialised urban areas with much less daylight and more use of electric light, throughout the day (and at night), on general health and quality of life? In this workshop report, we have classified key gaps of knowledge in daylight research into three main groups: (I) uncertainty as to daylight quantity and quality needed for "optimal" physiological and psychological functioning, (II) lack of consensus on practical measurement and assessment methods and tools for monitoring real (day) light exposure across multiple time scales, and (III) insufficient integration and exchange of daylight knowledge bases from different disciplines. Crucial short and long-term objectives to fill these gaps are proposed.
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Registered trials
Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.