Anyone learned and bought in to the issues around Blue Light?  This lady is a Princeton grad and a little whacky, but holy cow, her research eye opening.

Then there is Jack Kruse on the link below Dr. Cowan.

"Nutrition is important. But it's not the be all and end all. Light is just as important. Overall, you should aim to limit your exposure to blue light, both during the day and evening.  Humans evolved getting a full spectrum of light throughout the day, not overwhelming amounts of artificial blue.  Excessive blue light from LEDs and electronic screens can contribute to illness by triggering an overproduction of reactive oxygen species and decreasing your body’s production of melatonin." (https://www.optimallivingdynamics.com/blog/how-to-protect-your-brain-from-blue-light-screen-filters-protection-glasses-app-bulb-sleep-bedroom)

 

What ya think?

Edited February 21Feb 21 by Bob

Yeah the electronics are toxic

Blue lights never ended very well for me.

Especially the flashing ones that make siren noises.

 

Scott

I agree with the blue light theory.
I’ve considered getting the blue light blocking glasses.
I have a setting on my phone that I can set to turn down the blue light every day at 7:00 pm and not turn back on for 12 hours.


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12 hours ago, Scott F. said:

Blue lights never ended very well for me.

Especially the flashing ones that make siren noises.

 

Scott

Then stop getting speeding tickets!

A big part of the reason I became fascinated with this subject is.....  Our school district received a huge grant to strip out all of our existing lighting and convert everything to LED.  That work was done last summer and we have been living with those LED's for the past 6 months.  Causing the main Science Teacher and I beginning to read and research, we have noticed an uptick in Student sickness and a significant uptick in reported headaches.  We live in western Colorado and during the winter, our students are inside and under those lights 8 hours a day and rarely go outside for natural sunlight.   Now, couple this with vast increases in screen time of smart phones and computer screens.......

 

https://www.health.harvard.edu/staying-healthy/blue-light-has-a-dark-side

 

LED blue light exposure

If blue light does have adverse health effects, then environmental concerns, and the quest for energy-efficient lighting, could be at odds with personal health. Those curlicue compact fluorescent lightbulbs and LED lights are much more energy-efficient than the old-fashioned incandescent lightbulbs we grew up with. But they also tend to produce more blue light.

The physics of fluorescent lights can't be changed, but coatings inside the bulbs can be so they produce a warmer, less blue light. LED lights are more efficient than fluorescent lights, but they also produce a fair amount of light in the blue spectrum. Richard Hansler, a light researcher at John Carroll University in Cleveland, notes that ordinary incandescent lights also produce some blue light, although less than most fluorescent lightbulbs.

 

Edited February 19Feb 19 by Mesa_John

So LED’s produce Blue light? I did not know that.
That’s what we have in our house.
All the more reason to consider filtering glasses.


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I purchased these yesterday.... (I purchase all my prescription glasses from Zenni.)

 

https://www.zennioptical.com/b/blokz-blue-light-glasses?gad_source=1&gclid=Cj0KCQiA_NC9BhCkARIsABSnSTYM3_ucNlAGcdwvdDkq0Tt_cWtSV26rj03ZUyupaYMT1LMs5-xgyyYaAjKdEALw_wcB&gclsrc=aw.ds

 

 

When it comes to blue and LED's - you might find the history of the blue LED interesting
 

 

Just curious if you got the glasses, @Geezy ?

I have been using these in the evenings

They help me sleep better.

I have noticed using my phone for extended periods of time my eyes would be all fuzzy like before.

On 5/31/2025 at 7:37 PM, Miranda said:

Just curious if you got the glasses, @Geezy ?

I have been using these in the evenings

They help me sleep better.

No I did not but I need to try them.

On 2/19/2025 at 7:27 AM, Geezy said:

I agree with the blue light theory.
I’ve considered getting the blue light blocking glasses.
I have a setting on my phone that I can set to turn down the blue light every day at 7:00 pm and not turn back on for 12 hours.


Sent from my iPhone using Tapatalk

I do the same with my smartphone. Bacground turns sort of red at 6 PM, back to normal at 8 AM.

I also put on a red light around 8 pm for a couple of hours in bedroom. And use bright light for an hour at daytime in our dark winter, summer is light almost 24/7 now so I'm using curtains at night now.

I'd say that all this light yoga is helping me sleep full nights better than before. I have a history of working evenings and staying up all night for decades (musician) so sleeping full nights feels like luxury now.

And no TV since last September.

Edited June 2Jun 2 by Carburetor
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