#81

Or more likely IMO, from infrared/near-infrared part of the spectrum.

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#82

Roger Seheult thinks it’s UV.

#83

He does? Through what mechanism? He’s the one who introduced me to the research with infrared/NI.

#84

I don’t know.
https://x.com/RogerSeheult

#85

Then why did you say he thinks it’s UV (as opposed to infrared/near infrared)?

#86

Oh, that was a response regarding what mechanism he thinks the UV is using, if that’s what you mean, that I don’t know.

#87

Are you using “UV” and “sunlight” to mean the same thing? I’m distinguishing the UV (ultraviolet) portion of the spectrum from the infrared/near-infrared portion of the spectrum. Sunlight provides both (in addition to visible light). From everything I’ve seen, Seheult believes it’s the infrared/NI spectrum that provides the putative health benefits of sunlight (and thus in theory, one can wear UV-protective sunscreen, clothing, take Vit D if necessary, and still get the benefits of infrared light exposure).

2 Likes
#88

No.

image
image
etc

#89

Yeah, that’s a rare example. He’s still much more focused on health benefits of infrared/near-infrared and circadian effects of visible light.

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#90

Here’s a paper Dr Seheult is posting about UV

https://www.sciencedirect.com/science/article/pii/S1353829224001564

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#91

Dr Seheult also reposted this paper about UV and the mechanisms of action of UV on the body, and how the body protects itself against and uses UV.

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#92

They’re using “UV” interchangeably with “sunlight” in that entire paper, which is unfortunate.

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#93

Either way if someone believes unprotected UVA makes them healthier or “increase their longevity”, based on an association study, enjoy aging your skin and becoming permanently older in appearance though.

john-jonah-jameson-lol

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#94

Poison is in the dose. A little UV is all a person needs is what I’ve been told and what I aim for. If you get red or get burned, you got too much. And build up a tolerance over time.

A lot more NIR makes sense, and is easy to get: lamps, outside in the shade, drive with a window open a little.

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#95

No one would take it if it was in pill form.

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#96

Here’s a new video by Mario Kratz…this one on the importance of sunlight (all wavelengths) on metabolic health…he recommends getting into the sunlight regularly.

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#97

“expose yourself to irradiation from the nuclear fusion reactor”

nice way to disqualify yourself

the sun is so huge and dense that photons need thousands of years to get from the nuclear reaction in the center to the sun surface

it is plasma ball at 6000 K with corresponding black body radiation, well, plus corrections due to magnetic field activity

#98

Is a supernovae pointed directly at earth less deadly because it took a thousend years to get here?

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#99

I get the feeling that apart from papers on some health issues made palatable by chat gpt you guys are science wise really rather, how shall I say,… not gonna say it. I would have understood the difference between empty space and a scattering medium so dense that something with lightspeed is held up for years as a teenager.

Apart from that, the first order black body model of a supernova might be a few degrees above 6kK, :joy:

#100

What arrives here one earth on your skin is still a mixture of “healthy” and “unhealthy” light.