Sun, Jun-22-08, 18:00
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Senior Member
Posts: 1,163
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Plan: '72 Atkins ROCKS! :D
Stats: 208.5/164.6/173
BF:Size: 18/10/10
Progress: 124%
Location: No more FL for me! YAY!
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Quote:
Originally Posted by ElleH
I remember reading somewhere on Dr Eades blog that the tanning beds are not beneficial b/c they don't provide the right spectrum of UV light or something like that, and not to bother with them. He said natural sunlight is the best.
Unfortunately, it was in the comments section where he answered someone, and not in his actual blog, so a search didn't bring up anything. But I definitely remember reading it.
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Think I found it:
Quote:
This doesn’t have much to do with your post, but it has to do with mood elevating:
I’d like to see your opinion about tanning booths. In the winter months, where I live, we get about zero sunshine exposure. With my current diet, I’m probably getting about no vitamin D every day. I haven’t have any decent sun exposure since the month of august.
I’m curious about how much U.Is are produced vs. the sun, and how often should we tan. What I’m worried about is that this artificial tanning is much stronger, so if it is too long, the vitamin D might get destroyed. When you suntan outside, you usually tan on one side, then get on the other side, and so on, so I guess that the vitamin D gets a chance to be absorbed, so that you can produce some more when you come back to that side. Tanning booths have an advantage though: a full body UVb exposure, something that is not possible around here when tanning outside…
I’m going to start tanning next week, probably twice a week, only 5 minutes to begin. Since this will be the main change in my habits, I hope to be able to notice if it has an impact on my mood, my energy levels, my sleep, and perhaps my strength (weight training).
Thanks
Hi Max–
I’m no expert on tanning booths, but I do know that the wave length that tans is UVA. The wave length that burns is UVB. UVB also stimulates vitamin D synthesis. As I understand it, tanning beds produce primarily UVA, which would make sense considering people go to tanning beds to get tanned, not burned.
Why don’t you simply take a vitamin D3 supplement. They’re dirt cheap. Take at least 5,000 IU per day during the winter season - I take that much every day that I don’t go into the sun, summer and winter alike. A recent review article in the American Journal of Clinical Nutrition stated that even 10,000 IU per day isn’t too high.
So, were I you, I would check on the wavelength of the light in the tanning beds before I spent much time in them. If I found it to be primarily UVA, I would avoid them like the plague. UVA is the wavelength that stimulates the melanocytes and increases the risk for melanoma, a very nasty cancer.
Regular sun exposure gives you both UVA and UVB. The UVB produces vitamin D, which is protects against the development of melanoma as a consequence of the UVA exposure. As you develop a tan, you are protected even more.
The worst set up for melanoma is to go out in the sun for long periods using a UVB sunblock. The sunblock allows you to spend a lot more time in the sun without getting burned while also allowing you to get a whopping dose of UVA.
Good luck.
Cheers–
MRE
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http://www.proteinpower.com/drmike/...mood-elevators/
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