sunlightTruth.com

[eileen]

Originally Posted by EliteMike

during my ride home. i decided i'll create a page dedicated to natural vs artificial sources. the purpose is to show with facts hopefully that the uv is the same

I do like the way you think.

[EliteMike]

I work daily on government networks and I go to sunlighttruth.com today to find that it's been blocked already

"The category "Potentially Damaging Content" is filtered."

I understand their need to block out sites, but I'm not really sure what would be causing that site to be flagged. INTERESTING i must say.

[uv2021]

Originally Posted by EliteMike

I work daily on government networks and I go to sunlighttruth.com today to find that it's been blocked already

"The category "Potentially Damaging Content" is filtered."

I understand their need to block out sites, but I'm not really sure what would be causing that site to be flagged. INTERESTING i must say.

You mean I can put up a white supremicist site and something on a tanning site gets flagged?

Just curious,the site tanningtruth.com is already out there.Why are you doing sunlighttruth.com? I do appreciate it though.

[EliteMike]

Originally Posted by uv2021

You mean I can put up a white supremicist site and something on a tanning site gets flagged?

Just curious,the site tanningtruth.com is already out there.Why are you doing sunlighttruth.com? I do appreciate it though.

My purpose with sunlight truth is to not really talk about tanning directly. I feel that will get us no where. Once you talk about tanning, you become a punching bag. ANYTHING tied to tanning salons, with opinions on tanning won't go far in the public eyes. tanningtruth also isn't a good archive. Sunlighttruth was designed as a repository that can be filled by anyone i give access to. I'm also going to make an rss feed as well as a web service for people to stay current, that is something we as an industry need. People post articles on all these forums, but it's not the best medium for it.

I won't mention smart tan, or even the ITA. They are jokes, but that is just my opinion. The ITA may do a lot behind the scenes, but I cringe when they get press time. My goal is to use the media to battle the media. Many of these articles don't see the light for a long time on the major sites and are forgotten about. They often don't get a major spot on tv. The ITA isn't called up to speak on the positive news.

It will be a site of facts, if they aren't facts, they are opinions from doctors or from real media. Articles smart tan puts out aren't good enough because I think they try to do a 180 with the publics perception on tanning.

The biggest link I'll have to tanning is a comparison of artificual uv vs natural.

The sites will be completely differnt in nature, you'll see as it continues to fill up.

I'm not saying that smart tan doesn't have good articles, I just think the industry battles are too extreme.

[uv2021]

Thanks.When it is all done I will put a link on my site.

[stan@sunsys]

Originally Posted by EliteMike

during my ride home. i decided i'll create a page dedicated to natural vs artificial sources. the purpose is to show with facts hopefully that the uv is the same

Be very careful with the generallity of that premise. That is both a true statement and a false statement at the same time. Some characteristics of indoor and outdoor uv exposure are the same, such as the equivalence of the MED's received, and the ability to cause production of vitamin D.

But there are differnces too, such as the high amount of UVA from high pressure beds, the extension of the UVB wavelengths to ones shorter than 290 nm, in all tanning beds, the dropoff of UVB at about 290 nm from sunlight, the higher spectral ratio of Deff/Eeff weighted UV from some tanning lamps than solar UV (depending on the time of day, etc), the loweer spectral ratio of Deff/Eeff UV from othe tanning lamps than solar UV (same limitations), etc, etc, etc.

[EliteMike]

Stan, those are the kinds of things I hope to be able to fully understand

[engfant]

"But there are differnces too, such as the high amount of UVA from high pressure beds, the extension of the UVB wavelengths to ones shorter than 290 nm, in all tanning beds, the dropoff of UVB at about 290 nm from sunlight, the higher spectral ratio of Deff/Eeff weighted UV from some tanning lamps than solar UV (depending on the time of day, etc), the loweer spectral ratio of Deff/Eeff UV from othe tanning lamps than solar UV (same limitations), etc, etc, etc."

The problem with the sun is where are you standing on earth making these observations? High noon in Egypt is not the same thing as high noon in Boston.

[stan@sunsys]

More importantly than that, High noon (we use "solar noon" i.e. 12:50 pm on 8/4/09 in Boston, 1:38pm in Detroit) in Boston (or anywhere) is not the same as 3:00 pm, or 10:00 am.

They are different in intensity, obviously, but they are also different in spectral makeup. For the most Vitamin D3 per MED, it is best to go outdoors at solar noon - any day, any place.

Ironically, that's when the WHO advised to stay indoors.

[sparky]

Don Smith has done a lot of this info, posted in articles in Looking Fit Archives.

[stan@sunsys]

Looking Fit, or any tanning trade magazine only has the level of credibilty on technical or scientific subjects that... say... Cosmopolitan has. Those articles are good, but they should be backed up by ones such as:

Photochem Photobiol. 2007 Mar-Apr;83(2):459-63.Darkness at noon: sunscreens and vitamin D3.
Sayre RM, Dowdy JC.
Department of Medicine, Division of Dermatology, University of Tennessee Center for the Health Sciences, Memphis, TN, USA.

and

Arch Biochem Biophys. 2007 Apr 15;460(2):213-7. Epub 2007 Jan 8.
Factors that influence the cutaneous synthesis and dietary sources of vitamin D.
Chen TC, Chimeh F, Lu Z, Mathieu J, Person KS, Zhang A, Kohn N, Martinello S, Berkowitz R, Holick MF.
Vitamin D, Skin and Bone Research Laboratory, Endocrine Section, Department of Medicine, Boston University School of Medicine, Boston, MA 02118, USA.


and

Photochem Photobiol. 2008 Sep-Oct;84(5):1277-83. Epub 2008 May 29. Action spectrum conversion factors that change erythemally weighted to previtamin D3-weighted UV doses.
Pope SJ, Holick MF, Mackin S, Godar DE.
Sun Systems & Svc, Inc., Oak Park, MI, USA.

[stan@sunsys]

oh yea, duh, forgot to do this one. They also compare to the CMM action spectrum. But like I said before, the rationale is true for the erythema action spectrum for the same reasons;

Adv Exp Med Biol. 2008;624:86-8.

At what time should one go out in the sun?

Moan J, Dahlback A, Porojnicu AC.
Department of Radiation Biology, Institute for Cancer Research, Montebello, Oslo, Norway. johan.moan@labmed.uio.no
To get an optimal vitamin D supplement from the sun at a minimal risk of getting cutaneous malignant melanoma (CMM), the best time of sun exposure is noon. Thus, common health recommendations given by authorities in many countries, that sun exposure should be avoided for three to five hours around noon and postponed to the afternoon, may be wrong and may even promote CMM. The reasons for this are (1) The action spectrum for CMM is likely to be centered at longer wavelengths (UVA, ultraviolet A, 320-400 nm) than that of vitamin D generation (UVB, ultraviolet B, 280-320 nm). (2) Scattering of solar radiation on clear days is caused by small scattering elements, Rayleigh dominated and increases with decreasing wavelengths. A larger fraction of UVA than of UVB comes directly and unscattered from the sun. (3) The human body can be more realistically represented by a vertical cylinder than by a horizontal, planar surface, as done in almost all calculations in the literature. With the cylinder model, high UVA fluence rates last about twice as long after noon as high UVB fluence rates do. In view of this, short, nonerythemogenic exposures around noon should be recommended rather than longer nonerythemogenic exposures in the afternoon. This would give a maximal yield of vitamin D at a minimal CMM risk.

[sparky]

Stan,

they look like great articles but all are javascript links that don't work.

[stan@sunsys]

You have to go to PubMed and read the abstracts yourselves. Those aren't links, the papers aren't all freely available. I can email anyone a copy of the "Action Spectrum Conversion..." one, but that's it.

For the Sunlighttruth.com site, a summary of the important or relevant facts can be stated, then the supporting papers cited.

[EliteMike]

I'm not a copyright expert, but is leaving all the original content along with the original source enough to protect myself? I'm checking into it today. It's not like I'm pulling pieces from the article or saying the article is mine.

[EliteMike]

I'd like to think articles would fall under fair use
Fair Use. This is a doctrine which permits the reproduction of copyrighted material for a limited purpose of teaching, reviewing, literary criticism and the like. Without the "fair use" doctrine books and movies could not be reviewed and colleges and high schools would not be able to study works by people like Arthur Miller. "Fair use", however is determined on a case by case basis.

Digg.com and many other sites do this.

[EliteMike]

I just realized the site is not rendering properly on IE 7. It's fine in IE8 normal mode and firefox most recent version. Can't wait to mess with the old IE. YAY

[Le]

Originally Posted by EliteMike

I'd like to think articles would fall under fair use

Yes, just make sure to properly credit the source.

Good job Mike, I like the angle

[EliteMike]

For those that have been conrtibuting, you can now edit the posts you made. The posting process is a little more streamlined as well.

I made tons of changes behind the scenes, the site should be quicker when viewing articles from the recent article list.

Tomorrow I'll build a page for the article archive and hopefully start working on filling the big white spots. I'll get to the IE 7 issue eventually.

If you want to contribute, you need to create an account. My account system is very simple at the moment, I won't know if anyone actually signed up, so if you read this, send me a PM and I'll give you the ability to post.

[frankie]

Mike the donate button at the bottom of the page. If someone is donating what are they donating for? To keep the site going?