Post on 04-Aug-2015
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LIGHT & HEALTHLSCES113
SPEAKER NAME/SDATE
Credit(s) earned on completion of this course will be reported to AIA CES for AIA members. Certificates of Completion for both AIA members and non-AIA members are available upon request.
This course is registered with AIA CES for continuing professional education. As such, it does not include content that may be deemed or construed to be an approval or endorsement by the AIA of any material of construction or any method or manner ofhandling, using, distributing, or dealing in any material or product.___________________________________________Questions related to specific materials, methods, and services will be addressed at the conclusion of this presentation.
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© Lighting Science Group Corporation 2013
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While human biology has evolved with the natural light of the sun, in the last century we have introduced an electric lighting system for which there was no evolutionary precedence. This course will discuss the problems presented with electric light along with how new lighting technologies can be modified within indoor environments to promote health.
Course Description
Learning Objectives
At the end of the this course, participants will be able to:
1. Understand the role that light plays in determining healthy, living environments2. Learn how the brain processes light essential for the circadian rhythm3. Understand the root causes of problems developed from electric lighting to the
body4. Describe the method in which lighting can be altered in living environments to
promote healthy indoor environments.
Human Physical Health, Metabolism & Behavior are all aligned by the natural cycle of the sun.
THE IMPORTANCE OF LIGHT FOR HEALTH
Impact of Light on the Body
Due to evolution, the cycle of the sun has enabled the body’s:
• Sleep – Wake Times• Level of Alertness• Performance• Body temperature• Hormone secretion
Source: The Brain Treatment Center
• Our eyes interpret light for:• Vision• Circadian rhythm
control
• The eye sends light wavelengths to the brain signaling it to begin producing hormones like melatonin
• The circadian rhythm has evolved with the rising and setting of the sun• Blue light is seen in the
morning & afternoon
How does light affect our body system?
Light is one of the strongest influencers for health and wellness
Blue Light (+ / -)
Day
Agility / Performance
Psychological State
Night
Sleep
The influence of electric lighting as well as modern technologies has impacted the natural circadian rhythm
LIVING UNDER ELECTRIC LIGHT TODAY
Circadian Rhythm Disruption
On average, Americans spend 90% of their time indoors.
Our bodies are unable to take cues from the sun in our current environment.
Source: The Environmental Protection Agency
Circadian Rhythm Disruption
Circadian Rhythms are greatly disrupted by this causing:
• Sleep Disorders• Disease & Depression• Melatonin Suppression• Insomnia
U.S. Adults Suffering from Misaligned Circadian Rhythms
13 - 18
19 - 29
30 - 45
46 - 64
By Age
46% 51% 43% 38%
U.S. Adults Rarely / Never Get a Good Night’s Sleep on Weekdays
Source: National Sleep Foundation, 2011 Sleep in America Poll
Treatment for Sufferers of Misaligned Circadian Rhythms
• Sleep medications have become among the most prescribed pharmaceuticals in the U.S.
• Those taking prescribed sleeping pills are• At 3.5 times greater risk of
death with as little as <18 pills per year
• Risk of death rises with more pills per year
• 35% more likely to be diagnosed with cancer
Source: “Hypnotics' association with mortality or cancer” Dr. Daniel F Kripke,Robert D Langer, Lawrence E Kline
The absence of the correct wavelengths of light result in raised health concerns.
HOW ELECTRIC LIGHTING AFFECTS THE INDIVIDUAL
Nightshift Workers
• Risk of accidents are 30% higher
• Metabolic Disease is 2x as common
• Increased appetite & decreased energy
Source: Sleep, Health & Society, Francesco Cappuccio, Michelle Miller, Steven Lockley
Office Workers & Students
• Excessive sleepiness & decrease in performance
• Irritable behaviors• Weight gain,
possible diabetes and other health risks
Jet Lag Mitigation
• Imbalance of hormones
• Imparity of neurotransmitters
• Time Zone Disruptions
Proper health & energy savings can be realized by aligning the spectrum of natural daylight
MAXIMIZING LED FOR INDOOR ENVIRONMENTS
The Benefits of utilizing LED lighting technology
• LED lighting allows specific spectrums to be utilized
• The promotion of LED lighting in indoor environments can benefit the occupants with targeted wavelengths
• Lighting quality is not sacrificed with LED lighting since light intensity and color temperatures can be matched (even with varied wavelengths)
Improvement Opportunities with LED Technology
Among the Individual
• Nutrient Density Increase• Better Sleep• Improved Alertness• Boosted Immune System• Better Mood• Reduced Eye Strain
Improvement Opportunities with LED Technology
Among the Building
• Energy Savings• Quality Interior Lighting
improving illumination• Avoids Overheating• Decreased HVAC use
Biologically corrected LED lighting uses photobiology to optimize the light to work with the body rather than just provide illumination.
THE INTRODUCTION OF BIOLOGICALLY CORRECTED LED LIGHTING
Biologically Corrected Light and the Indoor Environment
Biologically corrected LED Lights that removes blue melatonin suppressing wavelengths do not have to sacrifice quality of illumination or color.
Biologically Corrected Light over Daylight Harvesting
During the winter months, shorter days are experienced.
Biologically corrected LED lights are enriched with specific wavelengths to promote alertness in a shorter time & at a lower intensity than bright light therapy.
This makes it ideal for SAD (Seasonal Affective Disorder) & DSPD (Delayed Sleep Phase Disorder).
Using Biologically Corrected Lighting for alignment
Using higher levels of blue light in LED lighting in conjunction with LED lighting with minimal blue light will strengthen the body’s circadian rhythm.
This benefits:
• The entrainment of circadian rhythms• Trans-meridian travel & shift work
• Maintaining optimal health levels• Metabolic benefit
Using Biologically Corrected Lighting for Peak Performances
LED lights with greater blue light can also be used to shift the body’s rhythms to either be advanced or delayed by 2 hours.
This benefits:
• Phase shifting• Emergency workers
• Acute Alertness• Actions requiring peak
performance
The Importance of LEDsin the Indoor Environment
• Increases in demand for electricity carry environmental consequences. • Using LED technologies in this space is more efficient than traditional
lighting.
• Every decade the cost per lumen falls by a factor of 10 and the light generated increases by a factor of 20.• This is exponential compared to other light sources.
• LED lighting offers a distinct form of light therapy in natural way
• LED lighting promotes proper light spectrums to be provided to the body’s needs for a balanced circadian rhythm and better health
This concludes The American Institute of Architects Continuing Education Systems Course
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