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UV radiation in sunlight induces vitamin A deficiency in human skin
I found this very interesting:
http://ur.umich.edu/9899/Apr12_99/9.htm
"We found that ultraviolet irradiation blocks the ability of skin cells to recognize and respond to an essential nutrient called retinoic acid, which skin cells make from vitamin A, or retinol," says John J. Voorhees, the Duncan and Ella Poth Distinguished Professor of Dermatology.
UV causes a major loss of retinoic acid receptors found in human skin cells. "Retinoic acid receptors are the molecular mediators of the biological actions of vitamin A. When retinoic acid receptors are lost, it is as if the skin has no vitamin A," Fisher explains.
"Eight hours after skin was exposed to UV radiation in our study, amounts of retinoic acid receptor messenger RNA and protein were as much as 70 percent lower than control levels. They remained below normal levels for more than 24 hours after exposure,"
Isn't interesting that UVA and/or UVB therapy is a proven treatment (and probably the most effective based on my research) for skin auto-immune diseases like psoriasis, eczema and many many others. Those dermatologist of course work from the assumption that the sun is always harmful. Somehow the human species lived with the sun for many millenniums yet it can kill us.
Maybe as Grant had alluded the retinoic acid present could explain the damage to the skin and the skin cancer we see? Is there a safe way for people with high VA to use UVB to heal ? I might get the UVB narrowband and report on it
-Ron
Hi Ron,
Thanks for the investigation on that.
For reference, here’s what I experienced:
Year 1:
I could tolerate not more than a few seconds of sunlight on my skin, resulted in almost instant heating and would rash / burn quickly.
Year 2:
I could tolerate about 1-2 minutes of sunlight on my skin without starting to burn.
Year 3:
I could tolerate about 10-20 minutes of sunlight on my skin without starting to burn.
Year 4:
I could tolerate about 30+ minutes of sunlight on my skin and that resulted in a tan without burning.
I have a UVB light, I bought it because it helps you make vitamin D. It energizes me quite a lot but after a couple of weeks/months of consistent use I start getting the opposite effect from it, it makes me feel very tired, and I have no idea as to why.
Hi guest,
may I ask what unit you have and how many times are you using it per week and also the length of each session?
It seems to me that it is part of the natural cycle to have periods with lower vitamin D. Maybe try reducing the frequency/length and don't use it in the spring/summer
Quote from Guest on December 20, 2018, 2:13 pmHi guest,
may I ask what unit you have and how many times are you using it per week and also the length of each session?
It seems to me that it is part of the natural cycle to have periods with lower vitamin D. Maybe try reducing the frequency/length and don't use it in the spring/summer
I've been using a rayminder uvb lamp for the last couple years. I've recently switched over to the sperti fiji sun lamp which is about 75% uva and 25% uvb. vit d is created by uvb only, but dug into some research articles that said uva and uvb breakdown vitamin a. i use the sperti lamp for about 2 minutes a day, 5-6x a week.
Quote from Guest on December 20, 2018, 2:13 pmHi guest,
may I ask what unit you have and how many times are you using it per week and also the length of each session?
It seems to me that it is part of the natural cycle to have periods with lower vitamin D. Maybe try reducing the frequency/length and don't use it in the spring/summer
I've been using a Sperti Fiji Sunlamp which is broad spectrum, and an Androv 3000 UV-B which has a very specific narrow spectrum. I feel the "need" to use it every day and by that I mean that I feel noticably better if I use it every day. That is, until it starts having the opposite effect. It's almost like a stimulant that just stops working after a while. I haven't been using it every day though, more like every other day on average. The sperti lamp is more powerful and also way more uplifting, but then it also causes a much stronger fatiguing effect later on. Maybe I should just use them less, although I think I'm going to have to take a longer break now, previously when I started having a negative effect I couldn't use it for like 4 weeks again without having the same negative effect.
Someone told me these types of lamps give of a ton of EMFs so it could be that I guess although it seems pretty far fetched to me. I think it is possibly something biochemical and I suspect there is more than just vitamin D that's involved
Yea, I think you might be overdoing it. The UVB full body lamp I am looking at is recommended only 2-3 times a week for 2mins each time. I doubt you would get a lot of emf from that although you could get an emf meter and test the theory.
I am not really getting it to feel good just to treat my skin issue
-ron