Evidence Intelligence™
- EvidenceScore™
- Emerging
- Score 59 · Based on 1 study
- ImpactScore™
- 25
- Negative
- ConsistencyScore™
- unclear
- Not enough independent studies
Supporting studies: Based on 1 study
Add to Evidence TrackerResearch Summary
Analyzed using Evidence Intelligence™
Increased blue light exposure worsens glycemic control in type 1 diabetes.
Last updated September 12, 2026
Key finding
Greater blue LEDS was significantly associated with higher glucose levels from CGM (B = 6.95; p = 0.041).
The study investigated the effects of blue and white LED light exposure at night on obesity and insulin resistance, finding significant associations with various health outcomes linked to blue light exposure.
Quick read
Study at a glance
The essential study design details in one scan.
EvidenceScore™
Moderate
Study type
RCTs
Follow-up
Short-Term (≤3 mo)
Risk of bias
Some Concerns
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Plain-language summary
What this paper says
A plain-language read of the study’s main message and where it applies.
Study focus
The study investigated the effects of blue and white LED light exposure at night on obesity and insulin resistance, finding significant associations with various health outcomes linked to blue light exposure.
Clinical relevance
Understanding the impact of light exposure on metabolic health is crucial, especially as obesity and insulin resistance are growing concerns in the general population. The findings suggest that limiting blue light exposure at night may help improve metabolic outcomes and psychological well-being, providing a potential intervention strategy for individuals at risk of obesity and diabetes.
Keep in mind
The study's sample size and diversity were not specified, limiting generalizability. The effects of light exposure were only assessed over a short duration. Potential confounding factors were not fully explored.
Published in
Journal Reference
Publication details and source links for this paper.
Seok JH, Sarida P, Pamela M, Alana DS, Chang GP, Sirimon R. Light exposure at night is linked to increased risk for obesity and insulin resistance in the general population. Journal of sleep research. 2026:e70380-e70380. doi:10.1111/jsr.70380
Main Effects
Greater blue LED exposure was associated with a 7.3 mg/dL increase in mean glucose levels (p = 0.022).
Participants exposed to blue LED light spent 7.3% less time in the target glucose range (70-180 mg/dL, p = 0.022).
Higher blue LED exposure correlated with increased depressive symptoms (4.41 points, p = 0.016).
Evidence network
How this study fits
Understand where this research contributes within the broader evidence network.
Evidence Context
This study contributes evidence to Dim Light Exposure and Anxiety score, Depressive symptoms prevalence, Pre-meal mean glucose, and 3 more.
This study contributes evidence to
Primary intervention
Dim Light Exposure
Primary outcomes
- Anxiety score
- Depressive symptoms prevalence
- Pre-meal mean glucose
Primary intervention
Primary outcomes
Evidence relationships
Intervention and outcome relationships this study adds to the evidence network.
6
Evidence pairs
6
Relationships
4
Evidence topics
contributes_evidence
Editorial context
Why this study matters
See why this paper is useful beyond its individual results.
Evidence network role
This section describes how the study fits into the current evidence network. It does not determine whether an intervention works on its own.
Moderate contributionModerate confidenceNetwork score: 72
4
Related topics
6
Evidence pairs
830
Related studies
High relevance in at least one topic
Why it is useful
- Contributes to 6 evidence relationships
- Includes primary outcome data
- Linked to 4 direct semantic evidence topics
Topic contributions
Evidence topic
Contributes evidence
Evidence topic
Contributes evidence
Evidence topic
Contributes evidence
Evidence topic
Contributes evidence
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Primary evidence
Evidence topic
CGM Time in Range
matched_outcome
Related evidence
Evidence topic
Glycemic Control
Save evidence
Core evidence
Study findings
The primary outcomes reported in this study.
Depressive symptoms prevalence
Dim Light Exposure → Depressive symptoms prevalence
Dim Light Exposure → Depressive symptoms prevalence
Evidence Intelligence™
- EvidenceScore™
- Emerging
- Score 59 · Based on 1 study
- ImpactScore™
- 100
- Very Positive
- ConsistencyScore™
- unclear
- Not enough independent studies
Supporting studies: Based on 1 study
Add to Evidence TrackerPre-meal mean glucose
Dim Light Exposure → Pre-meal mean glucose
Dim Light Exposure → Pre-meal mean glucose
Evidence Intelligence™
- EvidenceScore™
- Emerging
- Score 59 · Based on 1 study
- ImpactScore™
- 25
- Negative
- ConsistencyScore™
- unclear
- Not enough independent studies
Supporting studies: Based on 1 study
Add to Evidence TrackerEvidence Intelligence™
- EvidenceScore™
- Emerging
- Score 59 · Based on 1 study
- ImpactScore™
- 25
- Negative
- ConsistencyScore™
- unclear
- Not enough independent studies
Supporting studies: Based on 1 study
Add to Evidence TrackerEvidence Intelligence™
- EvidenceScore™
- Emerging
- Score 59 · Based on 1 study
- ImpactScore™
- 25
- Negative
- ConsistencyScore™
- unclear
- Not enough independent studies
Supporting studies: Based on 1 study
Add to Evidence TrackerEvidence Intelligence™
- EvidenceScore™
- Emerging
- Score 59 · Based on 1 study
- ImpactScore™
- 25
- Negative
- ConsistencyScore™
- unclear
- Not enough independent studies
Supporting studies: Based on 1 study
Add to Evidence TrackerEvidence Library
Build your evidence library
Save research, organize studies, and quickly find important evidence again.
Evidence Suggest
- Blue LED exposure linked to 7.3 mg/dL increase in glucose levels.
- Participants had 7.3% less time in the target glucose range with blue light.
- Increased depressive symptoms associated with blue LED exposure (4.41 points).
Who this applies to
- Adults experiencing obesity or insulin resistance.
- Individuals with diabetes or at risk for metabolic disorders.
Keep in Mind
- Findings may not apply to populations outside the study sample.
- Short-term exposure effects may differ from long-term implications.
- The study did not explore the effects of other light colors or intensities.
Between the Lines
- The study's sample size and diversity were not specified, limiting generalizability.
- The effects of light exposure were only assessed over a short duration.
- Potential confounding factors were not fully explored.
Evidence Library
Build your evidence library
Save research, organize studies, and quickly find important evidence again.
Connected Evidence
Explore related studies, evidence collections, and research questions.
Relationships organized using the Dediabetes Evidence Intelligence™ framework.
This study contributes to evidence on Dim Light Exposure and Mental Health, Dim Light Exposure and Depressive symptoms prevalence.
Related evidence relationships
Explore in Evidence ExplorerThis study contributes to the evidence on the following intervention-outcome relationships.
Devices & Technology
Dim Light Exposure → Mental Health
Devices & Technology
Evidence Intelligence™
- EvidenceScore™
- Emerging
- Score 59 · Based on 1 study
- ImpactScore™
- 25
- Negative
- ConsistencyScore™
- unclear
- Not enough independent studies
Supporting studies: Based on 1 study
View evidenceDevices & Technology
Dim Light Exposure → Depressive symptoms prevalence
Devices & Technology
Evidence Intelligence™
- EvidenceScore™
- Emerging
- Score 59 · Based on 1 study
- ImpactScore™
- 100
- Very Positive
- ConsistencyScore™
- unclear
- Not enough independent studies
Supporting studies: Based on 1 study
View evidenceDevices & Technology
Dim Light Exposure → Quality of Life Outcomes
Devices & Technology
Evidence Intelligence™
- EvidenceScore™
- Emerging
- Score 59 · Based on 1 study
- ImpactScore™
- 25
- Negative
- ConsistencyScore™
- unclear
- Not enough independent studies
Supporting studies: Based on 1 study
View evidenceIncluded in these evidence collections
Curated evidence collections and hubs this study is part of.
Depressive symptoms prevalence Evidence Hub
All studies measuring Depressive symptoms prevalence
1 studies
outcome_hubMeasures Depressive symptoms prevalence as a key outcome.
Dim Light Exposure Evidence Hub
All studies on Dim Light Exposure
1 studies
intervention_hubContributes to Dim Light Exposure evidence base.
Mental Health Evidence Hub
All studies measuring Mental Health
1 studies
outcome_hubMeasures Mental Health as a key outcome.
Quality of Life Outcomes Evidence Hub
All studies measuring Quality of Life Outcomes
1 studies
outcome_hubMeasures Quality of Life Outcomes as a key outcome.
Recent Diabetes Research
Latest published studies
recency_collection
Published within the last 2 years.
Explore more in Evidence Explorer
Jump to pre-filtered views in Evidence Explorer.
All studies on Dim Light Exposure and Anxiety score
Intervention: Dim Light ExposureOutcome: Anxiety score
1 results
All studies on Dim Light Exposure and Depressive symptoms prevalence
Intervention: Dim Light ExposureOutcome: Depressive symptoms prevalence
1 results
All studies on Dim Light Exposure
Intervention: Dim Light Exposure
1 results
All studies measuring Anxiety score
Outcome: Anxiety score
1 results
All studies measuring Depressive symptoms prevalence
Outcome: Depressive symptoms prevalence
1 results
Questions answered by this study
Generated from the study's connected evidence using Evidence Intelligence™.
Does Dim Light Exposure improve depressive symptoms prevalence?
Emerging Evidence
Dim Light Exposure appears to improve depressive symptoms prevalence.
ConsistencyScore™: Consistency cannot yet be determined from the available evidence.
Ranked evidence signals
- 1
Depressive symptoms prevalence
EvidenceScore™ Emerging | EvidenceScore™ 59.0 | strong positive | ConsistencyScore™ Unclear | 1 study
Why this answer: This answer is based on a single supporting study.
Limitations
- Only one supporting study is available.
Does Dim Light Exposure improve anxiety score?
Emerging Evidence
Dim Light Exposure may worsen anxiety score or be associated with harm.
ConsistencyScore™: Consistency cannot yet be determined from the available evidence.
Ranked evidence signals
- 1
Anxiety score
EvidenceScore™ Emerging | EvidenceScore™ 59.0 | moderate negative | ConsistencyScore™ Unclear | 1 study
Why this answer: This answer is based on a single supporting study.
Limitations
- Only one supporting study is available.
Does Dim Light Exposure improve pre-meal mean glucose?
Emerging Evidence
Dim Light Exposure may worsen pre-meal mean glucose or be associated with harm.
ConsistencyScore™: Consistency cannot yet be determined from the available evidence.
Ranked evidence signals
- 1
Pre-meal mean glucose
EvidenceScore™ Emerging | EvidenceScore™ 59.0 | moderate negative | ConsistencyScore™ Unclear | 1 study
Why this answer: This answer is based on a single supporting study.
Limitations
- Only one supporting study is available.
Does Dim Light Exposure improve quality of life?
Emerging Evidence
Dim Light Exposure may worsen quality of life or be associated with harm.
ConsistencyScore™: Consistency cannot yet be determined from the available evidence.
Ranked evidence signals
- 1
Quality of life
EvidenceScore™ Emerging | EvidenceScore™ 59.0 | moderate negative | ConsistencyScore™ Unclear | 1 study
Why this answer: This answer is based on a single supporting study.
Limitations
- Only one supporting study is available.
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