Trial reportSleep & breathing = Schlaf & Atmung2014
Effects of environment light during sleep on autonomic functions of heart rate and breathing.
Trial report in Sleep & breathing = Schlaf & Atmung, 2014. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 15 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
15 citing papers in PubMed, 1 synthesis or guideline pooled it, 30 citations in OpenAlex.
- Lighting in the Home and Health: A Systematic Review.International journal of environmental research and public health · 2021Pooled it
- The effects of heated humidification to nasopharynx on nasal resistance and breathing pattern.PloS one · 2019Trial
- Pilot study of dynamic lighting and sleep consolidation among older adults in a Jordanian senior care facility.Scientific reports · 2025Article
- Everyday Discrimination and Sleep Among Migrant and Non-migrant Filipinos: Longitudinal Analyses from the Health of Philippine Emigrants Study (HoPES).Journal of immigrant and minority health · 2024Article
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- Article
- In light of breathing: environmental light is an important modulator of breathing with clinical implications.Frontiers in neuroscience · 2023Article
- When Lights Can Breathe: Investigating the Influences of Breathing Lights on Users' Emotion.International journal of environmental research and public health · 2022Article
- Light exposure during sleep impairs cardiometabolic function.Proceedings of the National Academy of Sciences of the United States of America · 2022Article
- New and Emerging Approaches to Better Define Sleep Disruption and Its Consequences.Frontiers in neuroscience · 2021Review
- Napping Behaviors and Extracurricular Club Activities in Japanese High School Students: Associations with Daytime Sleep Problems.Clocks & sleep · 2019Article
- The association of sleep with neighborhood physical and social environment.Public health · 2018Review
- Neighborhoods, sleep quality, and cognitive decline: Does where you live and how well you sleep matter?Alzheimer's & dementia : the journal of the Alzheimer's Association · 2018Article
- Medical hypothesis: Light at night is a factor worth considering in critical care units.Advances in integrative medicine · 2017Article
- Article
Corrections and comments
PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.
Authors and funding
9 authors at 3 institutions in 2 countries.
Funding
Abstract
purposePoor sleep hygiene including sleeping in the daytime or with the lights on at night is discovered during the assessment of many sleep disorders including sleep apnea. The aim of this study was to investigate whether environmental light affected autonomic control of heart rate, sleep-disordered breathing (SDB), and/or breathing patterning.
methodsSeventeen non-obese healthy volunteers without witnessed snoring and apneas were recruited. Studies were performed at home using a type 3 portable monitor combined with actigraphy for sleep-wake timing, using a randomly assigned, crossover between dark, or 1,000 lx of fluorescent lighting environment. The outcomes were low-frequency power divided by high-frequency power (LF/HF ratio) in the analysis of heart rate variability, the apnea-hypopnea index (AHI), and ventilatory pattern variability before and after sleep onset between environments.
resultsThe LF/HF ratio and AHI were both significantly higher in light as compared to dark. Before sleep onset, the coefficient of variation (CV) for breath-to-breath tidal volume representing breathing irregularity tended to be higher in light than in dark environment. The CV values for tidal volume after sleep onset were significantly decreased compared with before sleep onset in both sleep environments. Mutual information of the ventilatory pattern was significantly lower before sleep onset than after sleep onset, only in the light environment.
conclusionsSleeping in the light has effects like that of a stressor as it is associated with neuroexcitation, SDB, and resting breathing irregularity in healthy volunteers. These findings may be relevant to many sleep disorders associated with poor sleep hygiene.
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What OpenQuestion holds
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.