Light is Energy
Circadian Ganglion Cells
Light for Health
Blue Light Dimming Apps
Red Night Lights
Vitamin D & Light
SAD - Seasonal Affective Disorder
Alzheimers & Light Therapy
Autism & Lighting for the Spectrum
Photosensitivity - Light Sensitive Drugs
Red Light Therapy
Dreams and Second Sleep
NASA - Lighting in Space & Undersea
"Everything has energy."
Humans have evolved under bright daylight and dark nights. Learn about the chemicals in our bodies that trigger sleep and wake cycles.
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