ArticleScientific reports2020
Beneficial effects of daytime high-intensity light exposure on daily rhythms, metabolic state and affect.
Article in Scientific reports, 2020. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 11 papers, 1 of them a synthesis that pooled it.
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
11 citing papers in PubMed, 1 synthesis or guideline pooled it.
- Relationship between seasons and postpartum depression: A systematic review and meta-analysis of cohort studies.Brain and behavior · 2022Pooled it
- Analysis of real-world eye level light exposure through spectacle lens.Npj biological timing and sleep · 2026Article
- Sleep and light ecologies of parents with young infants: descriptive findings from the SUNSHINE project.Npj biological timing and sleep · 2026Article
- Retinal light perception and biological rhythms: The role of light in sleep and mood from an ophthalmic perspective (Review).Molecular medicine reports · 2026Review
- Therapeutic Potential of Infrared and Related Light Therapies in Metabolic Diseases.International journal of molecular sciences · 2025Review
- Bulbil initiation: a comprehensive review on resources, development, and utilisation, with emphasis on molecular mechanisms, advanced technologies, and future prospects.Frontiers in plant science · 2024Review
- The role of daylight exposure on body mass in male mice.Physiology & behavior · 2023Article
- Beneficial effects of voluntary wheel running on activity rhythms, metabolic state, and affect in a diurnal model of circadian disruption.Scientific reports · 2022Article
- A Growing Link between Circadian Rhythms, Type 2 Diabetes Mellitus and Alzheimer's Disease.International journal of molecular sciences · 2022Review
- Circadian rhythms-related disorders in diurnal fat sand rats under modern lifestyle conditions: A review.Frontiers in physiology · 2022Review
- Anxiety and Cognition in Cre- Collagen Type II Sirt1 K/O Male Mice.Frontiers in endocrinology · 2021Article
Corrections and comments
PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.
Authors and funding
5 authors.
Funding
No grant is acknowledged in the PubMed record.
Abstract
While the importance of the circadian system to health and well-being is extensively studied, the role of daylight exposure in these interactions is relatively poorly understood. Here we show, using a diurnal animal model naturally exposed to daylight, that daily morning exposure to 3000 lux, full spectrum electric light has beneficial health effects. Compared with controls, sand rats (Psammomys obesus) subjected to morning light treatment demonstrate daily rhythms with high peak to trough difference in activity, blood glucose levels and per2 gene expression in the suprachiasmatic nucleus, pre-frontal cortex, kidney and liver. The treated animals were also healthier, being normoglycemic, having higher glucose tolerance, lower body and heart weight and lower anxiety- and depression-like behavior. Our results suggest that exposure to high intensity light is important for the proper function of the circadian system and well-being, and are important in face of human's low exposure to daylight and extensive use of artificial light at night.
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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 Socratic graph.