
Second edition of THE LIGHT DOCTOR is here!
Updated with the latest science and health solutions and expanded from visible light into ultraviolet and infrared. PLUS a special offer for Substack subscribers.
The light we see is as important to our health as the air we breathe, the food we eat, and the water we drink. THE LIGHT DOCTOR newsletter shows you how to take charge of the light you see and avoid using harmful and unhealthy LED and fluorescent light.
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Updated with the latest science and health solutions and expanded from visible light into ultraviolet and infrared. PLUS a special offer for Substack subscribers.

Federal Communications Commission allows satellite company to put mirrors in space to reflect the sun's rays onto the earth at night

Maternal blood glucose levels, elevated by blue-light exposure, cause overweight unhealthy babies

Completely ignoring health concerns, the world switched on harmful artificial LED lights

Seven clinical trials show substantial and widespread benefits for Alzheimer’s patients

Osteoarthritis is improved by daylight exposure, but Rheumatoid Arthritis risk is increased by too much daylight

It is time to modify the Melanopic EDI standard

450 nm blue pump LEDs do not adequately illuminate the elderly eye

Modern "energy efficient" windows cocoon us in an indoor world of spectrally-deficient light

Avoiding the sun causes 100 deaths from heart disease, cancer and other causes, for every skin cancer death prevented.