"Everything has energy."

Three Circadian Sub-Topics

1. Circadian System
2. Sleep Cycles & Light
3. Light Therapy 

CIRCADIAN

Light is Energy

Electromagnetic Radiation
Radio - Visible - UV

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​Circadian Explained

Day Light & Dark Night, Biological clock and your brain.

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Circadian Ganglion

In 2005, Panda, Melyan, Qiu, and colleagues demonstrated that the melanopsin photopigment was the phototransduction pigment in ganglion cells

Still writing  this page

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Circadian Melatonin

Still writing  this page

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Circadian Animals

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Circadian Research

CIRCADIAN LIGHTING

Human Centric Circadian Lighting

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Senior Lighting

Make your environment safer. Living with visual impairments.

SLEEP CYCLES

Sleep

How does light affect your sleep?  Is blue light keeping you awake?

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Blue Light Dimming Apps

Exposure to blue light at the wrong time of day can affect your sleep.

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Red Night Lights

Red night lights allow you to fall back to sleep more easily.

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Dreams & Second Sleep

Why you wake up in the middle of the night and how your dream cycle works.

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Vitamin D & Light

UV exposure limited by LED lighting and UV filtering windows.

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Jet Lag & Light

How to reset your circadian clock.

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NASA Lighting

Lighting for space, undersea, and remote locations.

LIGHT THERAPY & PHOTOTHERAPY

SAD

Seasonal Affective Disorder - Light Therapy Cautions

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Blue Light Babies

Newborn jaundice hyperbilirubinemia - Bili lights are a form of phototherapy.

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Photo-sensitivity

Light sensitive drugs, UV exposure in Natural and artificial light.

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Red Light Therapy

Is inflammation healed by red light?
Equine therapies and other research.

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Alzheimer's & Light

When and how much light can affect sleep habits of patients.

Still writing  this page

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Sunglasses

Do my sunglasses have UV protection?
Children at risk for snow blindness.

FEELING ENERGY

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Chakras

Energy maps within our bodies.  The energy that created you can heal you.

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Crystals - Minerals - Gemstones

Everything has energy.

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ChromaTherapyLight

Light and our bodies.

Humans have evolved under bright daylight and dark nights.  Learn about the chemicals in our bodies that trigger sleep and wake cycles.

Do no harm, consider risks of eye damage from UV light when evaluating light boxes.  Go for a walk at 7:00 am when the sky is the most clear because the moisture in the air has trapped the particulates in the air and they fall to the ground. See SAD

No Endorsements

No endorsements are made for any products shown on these pages, links or anywhere on this or any linked website - this information is solely intended to build a body of information about lighting resources.

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Footnotes

Footnotes on this website are shown as a number following the text surrounded brackets, like this [1]

Photo Credits

• Photo credits listed on individual topic pages.
  
• THERAPY -  https://en.wikipedia.org/wiki/Suprachiasmatic_nucleus

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