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[at-l] sunscreen



So wearing protective clothing is your best bet it seems.

chase


that guy wrote:

>   Here's an article to the contrary.
>    Trash Your Sunscreen and Other Summer Sun Tips
>   *By Dr. Joseph Mercola
> with Rachael Droege* 
> 
> It may seem like second nature to you to apply sunscreen before going out in 
> the sun, as the media has been bombarding Americans with reports of the 
> dangers of the sun for some time now, but using sunscreen is not a good way 
> to limit your sun exposure.
> 
> Having concerns about skin cancer is valid, however, as its incidence in the 
> United States has tripled in recent years to 54,000 cases annually, but 
> sunscreen is one of the LAST things you want to put on your body, and sunblock 
> does not stop skin
> cancer<http://www.mercola.com/2003/oct/18/sunblock_cancer.htm>.
> Sunscreen is a toxic chemical that can cause problems in your system and 
> increase your risk of disease. 
> 
> The FDA regulates sunscreen as an over-the-counter drug because it contains 
> "active" ingredients. Following is a list of active ingredients in sunscreen 
> that the FDA classified as GRASE (generally regarded as safe and effective): 
> 
>   
>    - Para Amino benzoic acid (PABA) 
>    - Avobenzone 
>    - Cinoxate 
>    - Dioxybenzone 
>    - Homosalate 
>    - Menthyl anthranilate 
>    - Octocrylene 
>    - Octo methoxycinnamate 
> 
>  
>    - Octyl salicylate 
>    - Oxybenzone 
>    - Padimate O 
>    - Phenylbenzimidazole 
>    - Sulisobenzone 
>    - Titanium dioxide 
>    - Trolamine salicylate 
>    - Zinc oxide 
> 
> *Potential Toxicity
> *
> 
> Whether some of these ingredients are toxic is controversial and there are 
> studies <http://www.mercola.com/2000/oct/15/sunscreen.htm> on either side of 
> the issue. But recently, a study in the April 2004 Journal of
> Chromatography<http://www.ncbi.nlm.nih.gov/entrez/query.fcgi?cmd=Retrieve&db=pubmed&dopt=Abstract&list_uids=15063329>found
> that there is significant penetration of all sunscreen agents they
> studied into the skin, and oxybenzone and metabolites across the skin. 
> 
> So at best when you use sunscreen your body is absorbing synthetic 
> chemicals, and with experts' recommendations to apply generous amounts of 
> the product every few hours, you will likely be absorbing a fair amount. It 
> is hard to believe that all of these chemicals will not have any effect on 
> your system. Titanium dioxide and zinc oxide, which act as physical barriers 
> that reflect UV rays, may be less problematic in terms of absorption.
> 
> Even though up until now studies on the potential toxicity of sunscreens are 
> sparse and not definitive, I believe it is wise to reduce your exposure to 
> synthetic chemicals as much as possible and I don't recommend using 
> sunscreens at all.
> 
> *Sunscreen and Vitamin D
> *
> 
> There is another major problem with sunscreen aside from the potential 
> chemical toxicity and that is it blocks your skin's ability to make vitamin 
> D by more than 95 percent. If you've been reading the site then you are 
> familiar with the importance of having optimal vitamin D
> levels<http://www.mercola.com/2003/dec/24/vitamin_d_deficiency.htm>and
> know that regular sun exposure is the best way to achieve this.
> 
> Rather than burying your skin in sunscreen, it is clearly important to get 
> regular sun exposure in order to have optimum health.
> 
> *Sun Safety Without Sunscreen*
> 
> This does not mean that we should all go out and get as much sun as we 
> want--you must exercise caution and avoiding a burn is key. 
> 
> At the beginning of the season, go out gradually and limit your exposure to 
> perhaps as little as 10 minutes a day. Progressively increase your time in 
> the sun so that in a few weeks you will be able to have normal sun exposure 
> with little risk of skin cancer. You can further avoid the damage from the 
> sun by staying out of the sun during the harmful times from 10 a.m. to 2 p.m. 
> You can stay in the shade during this time or wear lightweight long sleeve 
> shirts, long pants and a wide-brim hat.
> 
> If you are looking to give yourself further protection against skin cancer, 
> along with not getting sunburned diet is undoubtedly important. 
> 
> In 2001, the National Academy of Sciences published a comprehensive
> review<http://www.pnas.org/cgi/content/full/98/13/7510>showing that
> the omega 6:3 ratio was the key to preventing skin cancer
> development. I believe that it is the worsening omega-3:6 ratios that are at 
> least partly responsible for the rise in skin cancer rates. 
> 
> Omega-3 and omega-6 fats are both essential for human health, however the 
> typical American consumes far too many omega-6 fats in their diet while 
> consuming very low levels of omega-3. While the ideal ratio of omega-6 to 
> omega-3 fats is 1:1, our ratio of omega-6 to omega-3 averages from 20:1 to 
> 50:1! 
> 
> The primary sources of omega-6 are corn, soy, safflower and sunflower oil; 
> these oils are overabundant in the typical diet, which explains our excess 
> omega-6 levels. Avoid or limit these oils. 
> 
> Meanwhile, omega-3 fats, found in fish oil and cod liver
> oil<http://www.mercola.com/forms/carlsons.htm>,
> need to be increased. 
> 
> A major part of the problem is that at the beginning of 1900 we had very 
> little processed vegetable oils <http://www.mercola.com/2001/aug/1/oil.htm>, 
> which are virtually 100 percent omega-6 fat, in our diet. In the last 100 
> years the U.S. population has gone from consuming virtually no vegetable 
> fats to consuming more than 70 pounds per year. It is likely this 
> unnaturally high consumption of omega-6 fats that is totally distorting the 
> important omega 6:3 ratio.
> 
> So as I mentioned above, it is vital to reduce the omega-6 vegetable oils in 
> your diet as much as possible while increasing the amount of beneficial 
> omega-3 fats. This is an incredibly important way to prevent skin cancer and 
> it is spelled out quite clearly in a 2000 Cancer Research
> study<http://www.ncbi.nlm.nih.gov/entrez/query.fcgi?cmd=Retrieve&db=PubMed&list_uids=10945621&dopt=Abstract>that
> says:
> 
> "Epidemiological, experimental, and mechanistic data implicate omega-6 fat 
> as stimulators and long-chain omega-3 fats as inhibitors of development and 
> progression of a range of human cancers, including melanoma."
> 
> Additionally, consuming many whole vegetables will increase antioxidant 
> levels in the body, which will provide protection against any sun-induced 
> radiation damage. Eating the right vegetables for your metabolic
> type<http://www.mercola.com/2003/feb/26/metabolic_typing.htm>will give
> you the best results, of course.
> 
> So if you want to benefit from the sun this summer, and I sincerely hope you 
> do, throw away your sunscreen and use practical methods like clothing and 
> shade to protect your skin from the sun when necessary. Always avoid getting 
> burned, but be sure to get some sun on your skin. Complete avoidance of the 
> sun is a surefire way to cause some problems for yourself down the road.
> ------------------------------
> 
> *Related Articles:*
> 
> Sun-Care Chemical Proves Toxic in Lab
> Tests<http://www.mercola.com/2000/oct/15/sunscreen.htm>
> 
> Slathering on Sunscreen Does Not Prevent
> Cancer<http://www.mercola.com/2003/aug/2/sunscreen_cancer.htm>
> 
> Learn Why the Myth of the Sun Causing Skin Cancer Can Hurt Your
> Health<http://www.mercola.com/2002/jun/19/sun.htm>
> 
> Let the Sun Shine In (Especially When
> Pregnant)<http://www.mercola.com/2000/nov/26/sunshine.htm>
> 
> Test Values and Treatment for Vitamin D
> Deficiency<http://www.mercola.com/2002/feb/23/vitamin_d_deficiency.htm>
> 
> Why You Need to Have Your Vitamin D Level Tested
> Now<http://www.mercola.com/2003/nov/22/vitamin_d.htm>
> 
> 
> 
> On 4/29/05, Paul Magnanti <pmags@yahoo.com> wrote: 
> 
>>>>already see the lines in her face. I think where
>>
>>you >>are and how sunny
>>
>>>>your area is makes a big difference.
>>
>>Genetics can help as well. Having skin that is
>>naturally oil was the bane of my existence as a
>>teenager...but if Dad's side of the family is any
>>indication it will mean nice, smooth skin for a quite
>>a while. Great-grandma was that way when she passed
>>away. A roll of the the genetic dice means I tan
>>easily as well.
>>
>>Having said all that, still wear long sleeved shirts
>>and a big hat when hiking in the high country with
>>lots of UV radiation....
>>
>>************************************************************
>>The true harvest of my life is intangible.... a little stardust caught, a 
>>portion of the rainbow I have clutched
>>--Thoreau
>>http://www.magnanti.com
>>_______________________________________________
>>at-l mailing list
>>at-l@backcountry.net
>>http://mailman.hack.net/mailman/listinfo/at-l
>>
> 
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