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 Yeah, that's about as interesting to me as astrology. Light is light. What changes is the spectrum and that can be set at any wavelength with LEDs.  There is no meaningful amount of anything else radiating from an incandescent light.  The fact that it's a piece of molten tungsten doesn't make the light different than a cold diode of the same color. 
 Ok. I guess I don't know what I'm talking about. Next time I'll call my electrician before I read any scientific literature. 
 Snark all you want. If you think your incandescent light bulb has some kind of health benefit, I have a bridge to sell you. 
 Would you say the same of sunlight? 
 The sun is not a small band of glowing tungsten.  Troll harder