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Higher ultraviolet light exposure is associated with lower mortality

sciencedirect.com

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Re: Higher ultraviolet light exposure is associated with lower mortality

#7
post #3

Is this more vitamin D evidence or is there something more going on?

That is absolutely the right question to ask. If the results are not adjusted for vitamin D levels, and it does not appear that they are, then the results are largely useless because vitamin D is very easy to supplement.

Note: Adjusting by vitamin D levels is not the same as adjusting by supplemental intake. Even adjusting for supplemental intake must be a linear adjustment, not a binary one.

Re: Higher ultraviolet light exposure is associated with lower mortality

#9
post #3

Is this more vitamin D evidence or is there something more going on?

That is absolutely the right question to ask. If the results are not adjusted for vitamin D levels, and it does not appear that they are, then the results are largely useless because vitamin D is very easy to supplement. Note: Adjusting by vitamin D levels is not the same as adjusting by supplemental intake. Even adjusting for supplemental intake must be a linear adjustment, not a binary one.

That's an overly simplistic approach.

Re: Higher ultraviolet light exposure is associated with lower mortality

#10
post #3

Is this more vitamin D evidence or is there something more going on?

I was under the impression that recent consensus was that Vitamin D supplementation has much less positive health impact than sunlight exposure?

Of course, there exists the whole field of photobiomodulation. Red light therapy (630/670/810/830/850/1060 nm red and NIR light) helps the eye in the morning (see Prof Glen Jeffery's work at UCL; the mitochondria are only sensitive to RLT during a certain window of the circadian rhythm, that coincides with early morning sunlight that is shifted towards the red/NIR), particularly when it comes to preventing and slowing age-related macular degeneration, but also improving colour perception, controlling blood glucose levels, improving athletic performance and recovery, mood and cognitive performance, and some other benefits. When I first got interested I thought I'd just get a small handheld LED device, but as I got deeper into it I decided to buy a large mains powered full body panel with 5 wavelengths. In particular the benefits to my sleep and skin have been fantastic, with the caveat that I live in northern Europe at a latitude of 53.3 degrees north. Perhaps those nearer the equator will feel more muted responses. That being said, improvements to vision are counterintuitively very difficult to actually judge without measuring, because the brain is constantly adjusting/hiding our defects.
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