Light + Health

Light + Health, Lighting Design

Smart Lighting Strategies for Neurodivergent Patients

By Christa Belasco, PE, IALD, LC, Senior Lighting Designer, HGA For individuals with neurological conditions such as autism, Asperger’s, ADHD, or Sensory Processing Disorders, a simple visit to the doctor can become an overwhelming sensory experience. Individuals with certain neurological conditions can be particularly sensitive to the sub-visible flicker of direct lighting sources, frequencies that neurotypical [...]

Light + Health, Research

Soothing Color Research

  UC Davis researchers at The Color Lab have discovered that amber lighting has significant soothing effects on stress and anxiety, and they are now working on implementing human-centric lighting designs aimed at optimizing well-being in real-world settings. This innovative research is the product of an interdisciplinary collaboration between the California Lighting Technology Center (CLTC) [...]

Light + Health, Products + Technology

How Display Makers Are Pursuing Eye-Comfortable Displays

I was impressed to read about the lengths to which display makers were going to improve eye comfort for users. Let’s look at the new TCL NXTPAPER 11 Plus 11” tablet, as an example. First introduced in 2020, NXTPAPER is a hardware and software combination designed to manage blue light output from devices “while maintaining excellent visual [...]

Light + Health, Research

Is M-EDI a Reliable Predictor of Circadian Entrainment?

By Bill Chan, President, LiteController Inc. Melanopic Equivalent Daylight Illuminance (M-EDI) is widely used to assess circadian-effective lighting, but is it truly optimized for human biological responses? What is M-EDI? Melanopic Equivalent Daylight Illuminance (M-EDI) is a metric used to evaluate how light impacts our circadian rhythms, based on the sensitivity of Melanopsin, a photopigment [...]

Light + Health, Research

Meta-Analyses Of Non-Visual Effects Of Light

A new study was published last month, Non-Image-Forming Effects of Daytime Electric Light Exposure in Humans: A Systematic Review and Meta-Analyses of Physiological, Cognitive, and Subjective Outcomes, in the IES journal Leukos. Light exerts numerous nonvisual or non-image-forming, effects – such as its impact on melatonin suppression, circadian phase-shifts, sleep quality, and alertness. While research [...]

Light + Health, Research

Rethink Circadian Metrics? REV-ERBα Biomarker for Daytime!

By Bill Chan, President at LiteController Inc. We know how nighttime light affects Melatonin production – but do we truly understand how light exposure during the day influences our circadian system?  Current circadian lighting metrics do not fully capture the biological effects or circadian entrainment of daytime light exposure. The two circadian lighting metrics (CS [...]

Light + Health, Research

Red Light Therapy Reduces Blood Clots In Mice By 75%

  The research conducted by the University of Pittsburgh and UPMC has revealed groundbreaking findings on the potential of red light therapy to reduce blood clot formation. This discovery has significant implications for the prevention and treatment of life-threatening conditions such as heart attacks and strokes. Key findings include: Clot Reduction in Mice Mice exposed [...]

Light + Health

Product Monday: SunBooster, NIR Light Therapy Device

SunLED Life Science is set to unveil SunBooster, an innovative Near-Infrared (NIR) light therapy device, at CES 2025. This product aims to address the health concerns associated with prolonged indoor living, by bringing benefits of natural sunlight to indoor environments. Key Features of SunBooster SunBooster is designed to attach easily to computer monitors and laptops, [...]

Light + Health, Research

DOE CALiPER Report Published On GUV Upper-Room Luminaires

  The DOE’s new CALiPER testing report on upper-room Germicidal Ultraviolet (GUV) luminaires highlights significant advancements and persistent challenges in this technology. Upper-room GUV, recommended by both ASHRAE and the CDC, has shown promise in delivering substantial energy savings while meeting ASHRAE Standard 241 and CDC ventilation targets without requiring major HVAC upgrades. Key findings [...]

Light + Health

New Study On Near IR Impacts For Cognition, Emotion, & Heart

  A new study investigates the effects of near-infrared radiation (NIR) in ambient indoor lighting on human cognitive performance, emotional state, and cardiovascular health. The research addresses the absence of NIR in modern electric lighting systems and energy-efficient windows, despite its biological activity and therapeutic applications. In a preregistered within-subjects double-blind experiment, 151 university students [...]

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