Dr. Glenn Jeffrey has likened the impact of modern indoor blue-rich light environments to asbestos.
Posted by The Charlie Kirk Show, Checked
- Sources
- 5 support2 context
- Said
- 1 time·
- Confidence
- 70%
The Charlie Kirk ShowAug 5, 2026
Multiple sources report that UCL neuroscientist Glen Jeffery (the same person as the claim's 'Dr. Glenn Jeffrey') compared LED-dominated indoor lighting to asbestos, including in a Huberman Lab podcast quote ('This is an issue on the same level as asbestos').
What was said
… So much. Look into Dr. Glenn Jeffrey. Look at his research on the mitochondria. Since you guys are talking mitochondria, look at how red light and near infrared impacts mitochondria positive, and blue light specifically impacts mitochondria negative. And our indoor environments are completely devoid of red and infrared light since we got rid of the incandescent bulb, and we are in these blue rich, heavy environments that are actually slowing down our mitochondria, slowing down our metabolism, and it's, it's created, he, he's likened it to asbestos. What, what light bulbs do you recommend we get at home? Infrared, if you can get 'em. Ah, incandescent are always gonna be the best. That was really fascinating conversation. I loved it. Um, hopefully you guys did at home. Standard time for us? …
The Charlie Kirk Show · · from the transcriptPost →What we found
Supports. A transcript of the Huberman Lab podcast quotes Dr. Jeffery saying LED-type short-wavelength lighting is 'an issue on the same level as asbestos.'[1][2]
Supports. Reporting on a UCL warning describes Professor Glen Jeffery calling LED technology a 'clear and present public health emergency' comparable to asbestos.[3][4]
Supports. A later Inside Lighting analysis states that a British neuroscientist at UCL, Dr. Glen Jeffery, compared ordinary LED lighting to asbestos on a popular podcast.[5]
Context. The Inside Lighting piece says the asbestos comparison outran the underlying data (a 22-person study), which affects how strongly the claim should be read but does not deny that he made the comparison.[5]
Context. The source spellings 'Glen Jeffery' and 'Glenn Jeffrey' refer to the same UCL neuroscientist working on mitochondria and light, so the referent matches.[1][6][7]
Sources
7 sources: 7 not rated
- 1Huberman Lab - Using Red Light to Improve Metabolism & the ...podscripts.co · not rated · cited for: supports, context
- 2Expert on Huberman podcast claims LED Lights are an issue on ...rudevulture.com · not rated · cited for: supports
- 3Are LED lights bad for us? Study warns they're the ‘new asbestos'easternprogress.com · not rated · cited for: supports
- 4Are LED Lights Bad for Us? Study Warns They're the 'New Asbestos'ground.news · not rated · cited for: supports
- 5inside.lighting › news › 26-09How a 22-Person Study Became "LEDs Are the New Asbestos"inside.lighting · not rated · cited for: supports, context
- 6Using Red Light to Improve Metabolism & the Harmful Effects of LEDs | Dr. Glen Jefferyyoutube.com · not rated · cited for: context
- 7Dr. Glen Jeffery: Using Red Light to Improve Your Health & ...brightclips.ai · not rated · cited for: context
Where this claim was made
Said in 1 published post
Related claims
- Dr. Glenn Jeffrey's research indicates that red light and near-infrared light impact mitochondria positively, while blue light impacts mitochondria negatively.True
- Bright light therapy upon waking is the number one treatment for anxiety and depression.Mixed
- Women's menstrual cycles became irregular in 2010 because of the introduction of smartphones and artificial light at night.Mixed
- Peroxynitrite is produced by exposure to 5G, high-voltage power lines, EMFs, or mobile phones.Mixed
- Cell phone screens emit more than 10 lux of light even when turned to the darkest setting.Mixed