Caroline Irving

Caroline Irving

Tuesday, 31 March 2020 17:42

CIRCADIAN LIGHT RESEARCH CENTER

Optimizing Light for Human Health and Performance

floorPlanLocated on Boston’s Rt 128 High Tech Corridor

Dr Martin Moore-Ede, a former professor at Harvard Medical School, and his biomedical engineering research team built this medical research center to identify and develop the optimal lighting for 24/7 operations. With funding from the National Institutes of Health and other supporters they designed and operated light-controlled medical research center with fully spectrally-controlled workplace and residential lighting, to study human volunteers living and working shifts around the clock. 

As lighting with carefully controlled spectral content is delivered, a full range of physiological, psychological performance and medical tests are undertaken including

  • Sleep and wakefulness with continuous EEG monitoring
  • Blood tests (lipids, cardiac markers)
  • Glucose Tolerance tests (Diabetes)
  • 24-hour urine melatonin collection
  • Salivary Melatonin 30-minute intervals
  • Blood pressure
  • Alertness & performance tests
  • Mood and Depression scale test
Full ethical protection of our volunteers is provided. Each participant gave written informed consent after receiving a full explanation of the study purpose, design, and procedures. Study protocols and consent forms are reviewed and approved by the Circadian Institutional Review Board (IRB# 00001522) registered for Federal Wide Assurance (FWA) with the Office for Human Research Protections (OHRP) of the Department of Health and Human Services (HHS).  

Accomplishments
  • Identification of narrow band of 440-490nm blue light which disrupts circadian clocks at night, and elucidation of the light-adapted circadian spectral sensitivity curve.
  • Development of spectrally-engineered white light LEDs which remove critical blue wavelengths without causing yellow light.
  • Testing of multiple light fixtures to determine which best optimize human health markers such as insulin resistance, melatonin levels and sleep
  • Demonstration that blue depleted white light at workplace illumination levels can prevent the circadian disruption, melatonin suppression, excessive hunger and reduced vigilance caused by conventional blue-pump LEDs.
  • Development and testing of control systems which track the natural sunrise and sunset across the seasons of the year, and keep interior lighting in-sync with the external environment

 

Saturday, 30 November 2019 15:23

Evidence-Based

Saturday, 30 November 2019 04:41

Equine Health

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REVOLUTIONARY CIRCADIAN® HORSE LIGHTING SYSTEM

Optimizes Health, Well-Being and Athletic Performance of Your Horse

To provide the best environment for the health and well-being of horses, they need lighting designed to protect and strengthen their circadian rhythms. CIRCADIAN Light has created a uniquely effective spectrally engineered LED lighting technology that automatically provides the right light at the right time of day and night for your horse. 

THE RIGHT LIGHT IS ESSENTIAL FOR OPTIMAL HEALTH & PERFOMANCE: 

Light is the main synchronizer of the biological clock for all organisms on Earth… and horses are no exception. Research has confirmed that light entrains the circadian rhythms of horses and synchronizes them to their environment. In turn, providing the right light spectrum across the 24-hour day helps horses regulate and strengthen their: 
  • Sleep cycles 
  • Feeding patterns 
  • Energy and Athleticism 
  • Reproductive cycles 
  • Hormone cycles 
WHAT’S THE BEST LIGHT FOR HORSES? 
  • Horses Need Blue-Rich Light During the Day - Blue-rich light during the day entrains and strengthens a horse’s circadian cycle. In turn, this boosts alertness and energy during the day and improves sleep at night. 
  • Horses Need Blue-Depleted Light After Sunset - Research has shown exposure to blue-rich light sources in the evening and at night disrupts the circadian rhythms of horses and suppresses melatonin. Circadian disruption interferes with equine sleep and reproductive cycles, as well as feeding patterns, and can lead to jet-lag symptoms which can impact performance. 

LEARN MORE TO IMPROVE EQUINE HEALTH & PERFORMANCE  Download Brochure
Saturday, 30 November 2019 04:41

Fitness

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HEALTHY LIGHTING FOR OPTIMAL HEALTH, FITNESS, AND PERFORMANCE

Improving Alertness, Mood and Sense of Well-Being

GAIN THE COMPETITIVE EDGE IN FITNESS CENTERS 

You get a great workout and still cannot sleep at night 

Once the sun sets, which can happen at 4pm on winter evenings, we become incredibly sensitive to the blue content of light. Most electric lights are rich in blue, and it only takes a little light in the evening to disrupt sleep and undermine all the benefits of the workout. And a fatigued jet-lagged customer is not motivated to come back. 

The Key to Health and Fitness Lies in the Light Spectrum 

Our eyes and bodies are incredibly sensitive to lighting levels and color, and this sensitivity varies across the 24-hour day. Both daylight and electric light is made up of a rich palate of violet, blue, green, yellow and red light which together combine to make white light. In the morning blue rich light wakes us up, and synchronizes our biological clock, but that same blue light in the evening disturbs sleep and creates a jet-lag feeling by disrupting our circadian rhythms.

BENEFITS OF CIRCADIAN LIGHTS FOR STAFF & MEMBERS

BENEFITS OF CIRCADIAN LIGHTS FOR MEMBERS: 
  • Boost physical workout performance 
  • Improves alertness, mood and sense of well-being 
  • Promotes sleep at night and prevents circadian disruption 
  • Reduces the risk of injury or accidents 
BENEFITS OF CIRCADIAN LIGHTS FOR 

YOU AND YOUR STAFF: 
  • Key market differentiator for prospective members looking for a new fitness center 
  • Increases staff energy, performance and alertness 
  • Reduces employee turnover and absenteeism due to fatigue

LEARN MORE ABOUT CIRCADIAN LIGHTING FOR OPTIMAL HEALTH & FITNESS DOWNLOAD BROCHURE
Saturday, 30 November 2019 04:41

Senior Living

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Improve Health, Safety, and Well-Being of Residents & Staff

IMPROVE QUALITY OF LIFE FOR EVERY STAGE OF SENIOR LIVING

Lighting designed to boost circadian rhythms and health is the key to healthy senior living and can make your facility stand out in an increasingly competitive marketplace. Most elderly people are deprived of the right kind of light during the day and are exposed to the wrong kind of light at night. Spending time indoors under inadequate lighting, disrupts the circadian rhythms of elderly residents negatively impacting their appetite, energy and sleep. The result is depressed mood, increased agitation, chronic fatigue and increased risk of falls and injuries. Traditional fluorescent and LED lighting provides too little healthy light that mimics the benefits of daylight and provides too much blue content after sunset resulting in sundowning, sleep disruption and health disorders.

BENEFITS OF CIRCADIAN LIGHTS FOR STAFF & RESIDENTS

BENEFITS OF CIRCADIAN LIGHTS FOR 

RESIDENTS: 

  • Minimizes stress, anxiety, and agitation 
  • Reduces circadian disruption with improved mood and sleep 
  • Improves emotional wellbeing and reduces fatigue related to falls and injuries 
  • Enhances quality of life for your senior living community 

BENEFITS OF CIRCADIAN LIGHTS TO YOU AND YOUR STAFF: 

  • Key market differentiator for prospective residents looking for improved quality of life 
  • Increases staff energy, performance and alertness 
  • Reduces employee turnover and absenteeism due to fatigue 
  • Maintains natural circadian rhythms throughout the night

LEARN MORE ON HOW TO IMPROVE HEALTH, WELL-BEING, AND SAFETY AT YOUR FACILITY Download Brochure

Saturday, 30 November 2019 04:40

Healthcare

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Saturday, 30 November 2019 04:40

Workplace

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IMPROVE HEALTH, SAFETY, & PERFORMANCE IN YOUR WORKPLACE

Your company’s most valuable assets are the highly skilled employees running many critical areas of your organization. New standards like the American Petroleum Institute’s ANSI RP-755 recognize the importance of well-lit workplaces that prevent circadian disruption at night and the costly impact on an organization

To support key employees, your lighting systems should optimize safety, health, and productivity by minimizing circadian disruption. CIRCADIAN’S Zirc™ Technology

CIRCADIAN Zirc™ LED Technology:

  • Addresses the Health Risk of Light at Night – There is substantial evidence about exposure to blue light at night and how it disrupts circadian rhythms, which trigger carcinogenic and metabolic processes and suppress health-protecting hormones like melatonin. In turn, causing fatigue-related errors, absenteeism, presenteeism and higher turn-over rates in your operations.
  • Reduces the Cost of Circadian Disruption – The Jet-lag malaise that results from disrupted circadian rhythms resulting in low productivity and increased errors.
  • Maximizes Alertness and Vigilance – Blue-boost during the morning and post- lunch combined with a blue-depleted light at night that maintains alertness, productivity, and reduction in errors.
  • Light Training & Shiftwork Support Services – We can provide workforce training on managing fatigue, sleep and light with the installation as well as other shiftwork support services

YEAR ASSESSMENT OF CIRCADIAN LIGHTS IN THE WORKPLACE

  • 50% Increase in employees alert and fresh at 5 am, the hardest time to stay awake on the night shift
  • 67% Reduction in employees reporting frequent mistakes or errors in their safety-critical jobs
  • 50% Reduction in employees with excessive sleepiness on the Epworth Scale, a standardized fatigue metric
  • 33% Reduction in frequent nodding off/fighting sleep events
  • 45% Reduction in average number of snacks eaten during the night shift
  • 28% Reduction in employees who rank as obese or overweight by the Body Mass Index (BMI)
  • 20% Reduction in employees with Gastrointenstinal Disorders
  • 43% Reduction in frequent use of over the counter pain medications
LEARN MORE ON HOW CIRCADIAN LIGHTS CAN HELP YOUR ORGANIZATION 

Download Control Room Brochure Download 1-Year Case Study
Saturday, 30 November 2019 04:27

Zirc™ LED Technology

CIRCADIAN® Zirc LED Technology 

Breakthrough energy efficient Zirc Day-Night LED Mid-Power pair for circadian lighting

The evidence is in. Our brains and bodies require blue- rich light during the day and absence of blue light at night to promote health and well-being. The matched pair of Zirc Day and Night LEDs for the first time provide an unparalleled 85-fold day-night contrast between blue emission at the peak effective 475nm Circadian Potency wavelength. Not only does ZircLight provide a robust circadian entraining light solution, but with 128 lumens/ watt delivered 24/7 there is no compromise in energy- efficiency to ensure climate change initiatives can be met. 

In the natural world there is a strong circadian >100,000 fold contrast between 10,000 lux (cloudy day) and 0.1 lux (full moonlight). But unlike our ancestors we spend over 93% of our time indoors with conventional fluorescent and LED lighting which emits too little blue rich light during the day and far too much blue-rich light at night. Dozens of serious health disorders, from sleep disorders and fatigue, to obesity and diabetes, and even breast and prostate cancer have now been linked by the World Health Organization, American Medical Association and the NIH National Toxicology Program to the circadian disruption caused by the harmful effects of modern lighting. 

Why is 475nm blue the peak circadian wavelength?

Billions of years ago when life first began, the only light that penetrated the ocean depths was 475nm blue. All other spectral colors in sunlight are absorbed by sea water, so days were blue and nights black. Circadian clocks evolved using 475nm blue as the signal for day and night. New research now shows that our eyes, like the primitive oceans, use blue light with a peak wavelength of 475nm as the steady state signal for circadian entrainment. While short exposures in dark adapted laboratory volunteers may show some transient effects of violet and green, the key circadian signal is 475nm blue. Circadian ZircLight LED’s are spectrally engineered to adhere to this fundamental law of nature. 
Superior Solution

When you have to work in the evening or at night, you no longer need to dim the lights, or use ugly orange-yellow lighting, to avoid the harmful effects of blue-rich light at night. Spectrally engineered Zirc Day and Night light engines provide attractive energy efficient circadian healthy white light 24/7. Compared to 15-20% blue emissions of conventional LEDS, Zirc Night LEDs deliver only 1% of blue content, easily meeting the UL verification mark of “Less than 2% blue light at Night” And during the day ZircTM LEDs deliver more than 20% of blue content that has been critical to health since life began. 

Alertness and productivity at night safely delivered

Light is energizing especially when it contains shorter wavelengths such as blue and violet. Some have suggested using blue rich light at night to prevent fatigue, but that risks circadian disruption and ill health. Zircs night LEDs elegantly solve this problem by providing safe violet content, which is more effective than blue at promoting alertness and preventing errors, and with the advantage that it does not disrupt our circadian clocks. 

Matched Zirc White Light Day and Night LEDs 
  • Each 128 lumens/watt 
  • Each between 3200 – 4000 K CCT 
  • Both CRI >80 
With a record-breaking contrast in Circadian Potency 
  • Zirc Day emits 85 times more Circadian Potent 475nm blue than Zirc Night LED 
  • More than 20 fold difference in total 440-490nm blue emission 
  • Zirc Night LED emits only 1% of visible energy in 440-490nm blue Circadian potency band 
  • Exceeds the UL verification spec of <2% blue content at night

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CIRCADIAN Light LED Breakthrough Verified by UL: White Light with Less than 2% Blue Content at Night 

STONEHAM, MA -----   The significant health risks linked to the use of LED lights at night may have finally been solved by an innovative new LED technology. CIRCADIAN® Light’s new Zirc™ NightSafe™ LEDs are the first lights verified by UL, the leading global safety certification company, to emit white light with less than 2% blue content at night. This medically-significant breakthrough addresses the growing scientific evidence that exposure at night to the 10 - 30% blue light content of conventional LEDs has a profound negative effect on many aspects of human health and performance.

Read full press release

Read full press release

STONEHAM, MA -----   The significant health risks linked to the use of LED lights at night may have finally been solved by an innovative new LED technology. CIRCADIAN® Light’s new Zirc™ NightSafe™ LEDs are the first lights verified by UL, the leading global safety certification company, to emit white light with less than 2% blue content at night. This medically-significant breakthrough addresses the growing scientific evidence that exposure at night to the 10 - 30% blue light content of conventional LEDs has a profound negative effect on many aspects of human health and performance.

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