Tag Archives: sun exposure

Vitamin D Levels Press Release. Remember Sun!

Vitamin D levels: sufficient for winter? By Marc Sorenson, EdD

Sunbeds good in winter for vitamin D.Vitamin D levels and sunshine are exceptionally important to human health, and therefore we should be aware of vitamin D science. The Vitamin D Society of Canada is always at the forefront of the research on vitamin D levels and sunlight. And, they deliver press releases to keep people from Canada (and the world) apprised of new and important findings. Hence, I would like to comment on the salient points of their latest release. As I do so, it is especially relevant to note that vitamin D levels are surrogate measures for sun exposure.

The relationship of vitamin D to sun exposure

Ninety percent of vitamin D levels in the blood is due to sun exposure.[1] The UVB portion of sunlight stimulates vitamin D production in skin. Therefore, a UVB light source, which produces vitamin D levels, is the best source in winter. Remember also that the press release information is true for the world, not just Canada.

 Salient points about vitamin D levels and sunlight: breast cancer

  • First of all, consider a breast-cancer study published in the scientific journal, Plos One.[2] It showed that women with the highest vitamin D levels had a reduced breast-cancer risk. Most noteworthy, women with levels > 60 ng/ml had 82% reduced risk, compared to those with levels < 20 ng/ml. Furthermore, there was a dose-response decrease. For each increase in vitamin D levels, there was a concomitant decrease is breast-cancer risk.

Vitamin D levels and Breast Cancer

  • Since we mentioned that vitamin D is produced by sun exposure, we should mention an Iranian sunlight-breast cancer study. In Iran, among women who totally avoid sun exposure, there is a 10-fold increase breast cancer risk.[3] That is an especially relevant fact for women who believe they should avoid the sun! And remember, melanoma is also reduced in those who are regularly exposed to sunlight.[4]

Another Vitamin D levels- and sunlight-deficiency cancer

  • It seems like if breast cancer is reduced by high vitamin D levels, the same relationship could exist for other cancers. Hence, the press release mentioned colorectal cancer as the second disease associated to low vitamin D levels or low sun exposure. And, it mentioned another important piece of research.[5] Participants with vitamin D levels below 12 ng/ml had a 31% higher risk of colorectal cancer. Those with levels above 30 ng/ml had a 27% reduced risk.

Other disorders associated with vitamin D levels

In addition, the press release mentions four other disorders where higher vitamin D levels reduce risk or improve the condition. The disorders: diabetes (81% reduced risk), multiple sclerosis (45% reduced risk), preterm birth (62% reduced risk) and poor cognitive function. As to cognitive function, those who spent the most time outdoors with the least sun protection, had better cognitive function.

Finally, this is an excellent press release regarding vitamin D levels and sunlight. I strongly suggest you read it. http://www.vitamindsociety.org/press_release.php?id=60 Also, see the previous blog regarding the vitamin D Society and vitamin D levels: http://sunlightinstitute.org/vitamin-d-canada-warning/

Vitamin D and sunlight are sine qua nons for health, and so are proper nutritional habits. Happy health! Be sure to read my book, Embrace the Sun, available at Amazon. Best book on sunlight and vitamin D

 

 

[1] Reichrath J. The challenge resulting from positive and negative effects of sun: how much solar UV exposure is appropriate to balance between risks of vitamin D deficiency and skin cancer? Prog Biophys Mol Biol 2006;92(1):9-16

[2] McDonnell SL, Baggerly CA, French CB, Baggerly LL, Garland CF, Gorham ED, Hollis BW, Trump DL, Lappe JM. Breast cancer risk markedly lower with serum 25-hydroxyvitamin D concentrations ≥60 vs <20 ng/ml (150 vs 50 nmol/L): Pooled analysis of two randomized trials and a prospective cohort. PLoS One. 2018 Jun 15;13(6).

[3] Bidgoli SA, Azarshab H. Role of vitamin D deficiency and lack of sun exposure in the incidence of premenopausal breast cancer: a case control study in Sabzevar, Iran. Asian Pac J Cancer Prev. 2014;15(8):3391-6.

[4] Vågero D, Ringbäck G, Kiviranta H. Melanoma and other tumors of the skin among office, other indoor and outdoor workers in Sweden 1961–1979. Brit J Cancer 1986;53:507–12.

[5] McCullough ML, Zoltick ES, Weinstein SJ, Fedirko V, Wang M, et al. Circulating Vitamin D and Colorectal Cancer Risk: An International Pooling Project of 17 Cohorts. J Natl Cancer Inst. 2018 Jun 14.

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Infant Sun exposure? Direct UV light prevents eczema.

An infant breakthrough! Our babies need sunlight! By Marc Sorenson, EdDinfant sun exposure

An infant may return to the sun due to exciting new research from Australia.[1] The researchers surmised that vitamin D deficiency might explain the high rates of infant allergic diseases. They specifically measured infant eczema. Eczema and other allergic diseases are common in areas of industrialization and high latitudes. Thus, eczema could indicate low vitamin D levels. The researchers made this statement: “Suboptimal vitamin D levels during critical periods of immune development have emerged as an explanation for higher rates of allergic diseases associated with industrialization and residing at higher latitudes.” That seems like wisdom, yet, as you’ll see, they turned out to be wrong.

The infant study: UV light or vitamin D?

So, the researchers set out to determine the effects of early-life vitamin D supplementation on infant allergy prevention. In addition to supplementation, they also outfitted some infants with a dosimeter to also measure UV exposure. This group was compared to a placebo group. In addition, each infant was assessed from birth until age six months. This was done because about 90% of vitamin D is produced by sun exposure to the skin. Vitamin D is an important photoproduct of sunlight. And I opine that sun exposure is of much greater importance. Why? Because sun exposure and its UV light lead to the production of many essential photoproducts beyond vitamin D. Also, a high vitamin D level may simply be a surrogate measurement for sun exposure in some cases. Consequently, other photoproducts such as nitric oxide, serotonin, endorphins, dopamine, BDNF and many others may be the health givers. (For a list of more photoproducts, see my last blog, called Holistic Sun). An infant may need all that the sun can provide, including vitamin D.

The results for infant eczema risk

The results were surprising to the researchers but not to me, based on the facts stated in the above paragraph. So, infant vitamin D levels were greater for the supplemented group than the placebo group.at three and six months, That seems like an expected outcome. Most noteworthy, however, was that there was no difference in eczema incidence between infant groups. And also especially relevant was the fact that those who showed the most UV (sun) exposure had the least risk. In addition, the children with eczema had only a bit over half the UV exposure. Vitamin D simply made no difference to eczema.

The researchers’ conclusion regarding infant eczema

Therefore, the researchers wrote the following: “This study is the first to demonstrate an association between greater direct UV light exposures in early infancy with lower incidence of eczema and pro inflammatory immune markers by 6 months of age. Our findings indicate that UV light exposure appears more beneficial than vitamin D supplementation as an allergy prevention strategy in early life.”

In conclusion, UV exposure from sunlight, tanning lamps or tanning beds is far more important that vitamin D per se. And sun exposure also produces vitamin D in the way God (or nature if you prefer), intended. Why should we accept one pill containing vitamin D, when we can obtain the entire package of photoproducts with UV-containing sunlight? For more information on sunlight, eczema and psoriasis, read my new book, Embrace the Sun, Available at Amazon. Also read my previous blog, Holistic Sun.

[1] Rueter K, Jones AP, Siafarikas A, Lim EM, Bear N, Noakes PS, Prescott SL, Palmer DJ. Direct infant UV light exposure is associated with eczema and immune development. J Allergy Clin Immunol. 2018 Oct 15. [Epub ahead of print]

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Metabolic syndrome reduced by sun. Marc Sorenson, EdD.

What is metabolic syndrome?

Metabolic syndrome is a group of physical conditions that are predictors of disease. And, it can also be an indicator that disease is already present. Hence, when someone suffers from metabolic syndrome, they will have many dangerous disorders. High blood pressure, obesity, high cholesterol, high triglycerides, Low HDL, glucose intolerance and insulin resistance. Furthermore, these disorders are linked to increased risk of cardiovascular disease and type 2 diabetes. And, they are often indicative of upcoming health disasters.Avoid metabolic syndrome with sun exposure

How metabolic syndrome is influenced by sunlight.

First of all, how does this tie into the benefits of sunlight? A recent study showed that a program designed to raise vitamin D levels reduced existing metabolic syndrome remarkably.[1] Fifty-nine people with metabolic syndrome participated in the study. It is most noteworthy that these subjects were told to expose themselves regularly to sunlight and eat foods high in vitamin D. Metabolic syndrome, as a result, decreased by about half after one year on this regimen.

Does other research associate metabolic syndrome with sun exposure?

One major aspect of metabolic syndrome is obesity. Hence, research demonstrating a reduction of obesity also indicates a reduction of metabolic syndrome. So, let’s mention another scientific paper that “sheds more light” on the subject of obesity.[2] This research was conducted on mice with shaved backs that were placed on a high-fat diet and then exposed to non-burning ultraviolet radiation (UVR). UVR is one of the types of light that is produced by sunlight. Especially relevant is that the mice should have gained weight rapidly. But the weight gain was impressively reduced when they were exposed to UVR. The treatment achieved a 30-40% reduction in weight gain, compared to the expected weight gain with the high-fat diet. Therefore, the “sun treatment” reduced the risk of obesity. And, it also reduced metabolic syndrome.

Other metabolic syndrome changes shown in this research

Benefits of these treatments also included: significant reductions in glucose intolerance, insulin resistance and fasting insulin levels (all markers and predictors of diabetes and metabolic syndrome). In addition, nonalcoholic fatty liver disease and high cholesterol were also reduced.

Furthermore, a very interesting finding emerged: Supplementation with vitamin D actually reduced the aforementioned beneficial effects. Dr. Shelley Gorman, The research leader, made the following interesting observations:

  1. “These findings were independent of circulating vitamin D and could not be mimicked by vitamin D supplementation.”
  2. “It looked like the presence of vitamin D in mice on the high fat diet prevented the [beneficial] effect of UV radiation on weight gain.”

  1. Furthermore, Dr. Gorman mentioned that the mechanism of weight loss may be dependent on nitric oxide (NO). NO originates from diet and is mobilized by UV radiation to become bioactive. This conclusion was due to another part of the experiment. Skin induction of nitric oxide (NO)—also a product of skin exposure to the sun—reproduced many of the positive effects of UVR. This was something vitamin D supplements could not do.

In conclusion to this research, the investigators stated their findings. “These studies suggest UVR [sun exposure] may be an effective means of suppressing the development of obesity and MetS, through mechanisms independent of vitamin D but dependent on other UVR-induced mediators such as NO.”

It seems like there is no end to the miracles of regular, non-burning sun exposure. Consequently, do not disregard the sun and its health-giving effects. Just don’t burn. For more information, read my book, Embrace the Sun, available at Amazon. Embrace the Sun, avoid sunscreen

[1] Nasser M. Al-Daghria, Khalid M. Alkharfya, Yousef Al-Salehb, Omar S. Al-Attas et al. Modest reversal of metabolic syndrome manifestations with vitamin D status correction: a 12-month prospective study.

[2] Geldenhuys S, Hart PH, Endersby R, Jacoby P, Feelisch M, Weller RB, Matthews V, Gorman S. Ultraviolet radiation suppresses obesity and symptoms of metabolic syndrome independently of vitamin D in mice fed a high-fat diet. Diabetes. 2014 Nov;63(11):3759-69

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Low-back pain: lack of sun? By Marc Sorenson, EdD

Sun exposure low-back painFirst of all, low-back pain is pandemic in much of the world. And, it is especially common in countries where most women wear clothing that prevents sun exposure to the skin.[1] One of the first studies to show an association between LBP and reduced sun exposure was done in England:[2] Northerners were 3-4 times as likely to suffer low-back pain as southerners. Of course, we know that there is less sunshine in the north.

Other low-back pain research shows similar results based on latitudes.

Hence, it is no surprise that research done in Southeast Asian countries shows an equally impressive result for sun exposure.  Low-back pain increases from southern to northern latitudes, starting at 5º North (Malaysia – 8.8% low-back pain rate), continuing to 23º N (10.2% low-back pain rate), then 32º N (13%), and finally to 40º N (Beijing — 15.8%).[3] Furthermore, another study by showed that vitamin D deficiency was common among those suffering from low-back pain. It was three-times more common than among those who did not suffer from low-back pain.[4] The researchers stated, “The major determinant of hypovitaminosis D in our patients is limited sun exposure.”

Low-back pain research from Saudi Arabia and Pakistan

In addition, similar findings have been reported in Saudi Arabia[5] and Pakistan.[6] Researchers did a study on undergraduates in  those areas. They researchers wanted to assess the students awareness regarding vitamin D deficiency associated with lack of sun exposure. These students often suffered from fatigue and muscular pain. Researchers concluded that many of them were acquainted with vitamin D deficiency, and some used a supplement. However, the investigators seemed to feel that supplements were not sufficient. They believed that sun exposure was the best method to maximize vitamin D levels.

In conclusion, they stated that the role of the sun, and the proper time and duration of exposure, could not be ignored. That is, if the students were to help effect a healthy and active society. Furthermore, they also indicated that since these students would be medical care givers in the future, their habits should be similar to the habits they intended to recommend to their future patients.

My conclusion about sun exposure and low-back pain.

In conclusion, it appears that sunlight, whether or not accompanied by vitamin D production, is effective for relief. Try a few minutes of non-burning sun exposure daily to ease the low-back pain. Remember how vital regular, non-burning sun exposure is for human health. For more information, read my new book, Embrace the Sun, available at Amazon. https://www.amazon.com/Embrace-Sun-Marc-B-Sorenson/dp/069207600X/ref=sr_1_1?ie=UTF8&qid=1534654532&sr=8-1&keywords=embrace+the+sun+sorenson

Learn to love non-burning sunlight and prevent breast cancer

[1] Lotfi A1, Abdel-Nasser AM, Hamdy A, Omran AA, El-Rehany MA. Hypovitaminosis D in female patients with chronic low back pain. Clin Rheumatol. 2007 Nov;26(11):1895-901

[2] Walsh K, Cruddas M, Coggon D. Low back pain in eight areas of Britain. J Epidemiol Community Health. 1992 Jun;46(3):227-30.

[3] Zeng QY, Chen R, Xiao ZY, Huang SB, Liu Y, Xu JC, Chen SL, Darmawan J, Couchman KG, Wigley RD, Muirden KD. Low prevalence of knee and back pain in southeast China; the Shantou COPCORD study. J Rheumatol. 2004 Dec;31(12):2439-43.

[4] Lotfi A, Abdel-Nasser AM, Hamdy A, Omran AA, El-Rehany MA. Hypovitaminosis D in female patients with chronic low back pain. Clin Rheumatol. 2007 Nov;26(11):1895-901

[5] Al Faraj S, Al Mutairi K. Vitamin D deficiency and chronic low back pain in Saudi Arabia. Spine (Phila Pa 1976). 2003  15;28(2):177-9.

[6] Qureshi AZ, Zia Z, Gitay MN, Khan MU, Khan MS. Attitude of future healthcare provider towards vitamin D significance in relation to sun exposure. Saudi Pharm J. 2015 Oct;23(5):523-527.

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Melanoma risk: reduced by high vitamin D and Sunlight

Melanoma risk between persons with high and low vitamin D levels

Melanoma Risk By Marc Sorenson, EdD, Sunlight Institutemelanoma risk is not caused by sun exposure

The risk directly associates with low levels of vitamin D. That is the conclusion of recent study published in the European Journal of Cancer.[1] The investigators measured the blood vitamin D levels of 137 subjects who had been diagnosed with melanoma. They collected the blood samples at the time of diagnosis of the disease. Another group of 99 healthy subjects served as the control group. The investigators collected the samples of the control group between October and April. The scientists then compared the blood collections of the melanoma group with those of the control group. They then determined whether vitamin D levels had an association with melanoma risk.

The study produced convincing results regarding vitamin D and melanoma risk.

The results were as follows:

  1. The controls (no melanoma) had vitamin D levels 50% higher than the melanoma group (27.8 ng/ml vs. 18 ng/ml).
  2. 66.2% of the melanoma group had vitamin D “deficiency,” compared to only 15.2% of the health controls. The scientists defined vitamin D deficiency as being equal to or less than 20 ng/ml. So, the melanoma group had more than four-times the risk of deficiency.
  3. The scientists defined vitamin D “sufficiency” as being equal to or greater than 30 ng/ml. They found that only 7.4% of melanoma patients were sufficient, compared to 37.4% of healthy controls. Hence, the melanoma group had about one-fifth the likelihood of having sufficient D levels.

More scientific analysis on vitamin D measurements vs. melanoma risk

The scientists then adjusted the data for possible confounding factors such as age, sex and body mass. Then, they performed an analysis that showed the following:

  1. First of all, the science demonstrated a significant inverse association with vitamin D sufficiency versus deficiency. Those who had sufficient levels had only 4% of the melanoma risk when compared to those who were deficient! Hence, this demonstrates that those with the lowest vitamin D levels (after adjusting for confounding factors) had 25-times the melanoma risk!
  2. And, vitamin D insufficiency vs. deficiency was significantly inversely associated with melanoma. Those who were insufficient had a definite advantage over those who were deficient. They had only 13% of the melanoma risk.

Now, this is the most important point about melanoma risk:

In addition, this research proves conclusively that sun deprivation is a major cause of melanoma. I say this because about 90% of serum vitamin D is produced by sun exposure to the skin.[2] So, the aforementioned research is really research on sun exposure. It shows that regular sun exposure leads to a profound reduction in melanoma risk. Therefore, Vitamin D levels are surrogate measurements for sun exposure in nearly every case.

Could sunlight increase health through photoproducts beyond vitamin D?

In conclusion: My new book, Embrace the Sun (coauthored by Dr. William Grant), notes that sun exposure provides more than vitamin D. It also provides other photoproducts such as nitric oxide, serotonin, endorphin, and brain-derived neurotropic factor (BDNF). All of these photoproducts are vital to human health. Could these photoproducts have a positive and protective effect against melanoma risk beyond vitamin D? And, vitamin D produced by sunlight may be superior to that given in pill form.

Finally, this research gives us one more reason to embrace the sun safely without burning. And who would have thought that safe sunlight could be one of the best prophylactics against melanoma risk?

Happy sunning!

The book is available at Amazon:  https://www.amazon.com/Embrace-Sun-Marc-B-Sorenson/dp/069207600X/ref=sr_1_1?ie=UTF8&qid=1533923845&sr=8-1&keywords=embrace+the+sun+sorenson

1] Cattaruzza MS, Pisani D, Fidanza L, Gandini S, Marmo G, Narcisi A, Bartolazzi A, Carlesimo M. 25-Hydroxyvitamin D serum levels and melanoma risk: a case-control study and evidence synthesis of clinical epidemiological studies. Eur J Cancer Prev. 2018 Feb 12. [Epub ahead of print]

[2] Reichrath J. The challenge resulting from positive and negative effects of sun: how much solar UV exposure is appropriate to balance between risks of vitamin D deficiency and skin cancer? Prog Biophys Mol Biol 2006;92(1):9-16

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Are you dying in the dark?

New book, Embrace the Sun, recommends non-burning sun exposure, citing research on sun exposure, vitamin D, and disease risk.

Available on AmazonEmbrace the Sun, by authors Marc B. Sorenson, Ed.D. and William B. Grant, Ph.D., claim that sun avoidance may be nearly as hazardous to your health as cigarette smoking! Will there soon be a Surgeon General’s warning about staying indoors or putting on too much sunscreen? Is this book based on science or pure science fiction?

The book is based on science and research. Together, Sorenson and Grant have worked 62 years studying and practicing health, nutrition, and the proper relationship with sunlight. A mountain of evidence exists showing that sunlight can promote weight loss, reduce depression, and profoundly decrease the risk of today’s common diseases including most cancers, heart disease, autism, diabetes, osteoporosis, multiple sclerosis, infertility, preterm birth and psoriasis. Do I have your attention? This book provides solid evidence towards a case for regular, sensible sun.

“Marc Sorenson and Bill Grant take us on a delightful journey to better understand the health benefits of our magnificent sun at a time when our sun has been demonized by various health organizations, including the dermatology community, which has been essentially unchallenged for the past 50 years,” said Michael F. Holick, Ph.D., M.D., Boston University Medical Center, “Embrace the Sunis an easy read that is chock-full of valuable information about the health benefits of sensible sun exposure. It provides a very practical guide on how to take advantage of our Magnificent Sun.”

According to the book, 75% of all melanomas occur on areas of the body that are seldom or never exposed to sunlight. Additionally, sun exposure has decreasedby about 90% in the U.S. population since 1935. During that same period, melanoma incidence has increasedexponentially, by approximately 3,000%! This evidence debunks the myth that melanoma is caused primarily by the sun, and instead suggests that the disease is at least partially caused by sun deprivation.

“This book is a tour de force for health effects of exposure to the sun,” said Cedric F. Garland, Dr. Ph. F.A.C.E., University of California at San Diego. “It is written simply enough and in such a light-hearted vein that any intelligent fifth grader can and should read it. It also should be required reading for every upcoming doctor in training and all health care professionals.”

Sorenson and Grant prepare the reader to make an informed choice. With summer coming, is it wise to get out regularly at midday, exercise, and soak up some rays? Or better to stay indoors, continuing the current regimen? Could it be that something so central to nature, the sun, which has been part of the human race for thousands of years is now bad for us? In this blip that is the late 20thand beginning 21stcentury has sun avoidance been helpful or hurtful? Read Embrace the Sun and find out!

About Marc B. Sorenson, Ed. D.

Dr. Sorenson is a doctor of education (EdD) with a health background.  He and his wife, Vicki, developed one of the world’s top resorts (National Institute of Fitness). During 20 years, their clients lost over 100 tons of fat; two thirds of diabetic guests were freed of medication in two weeks; and others recovered from cholesterol, arthritis, and myriad additional maladies. Sorenson has written ten books and hundreds of blogs for his site, Sunlight Institute. On the recommendation of Senator Orrin Hatch, a flag was flown over the U.S. Senate building to honor his contributions to world health.

About William B. Grant, Ph.D.

Dr. William Grant is an epidemiologist and founder of the nonprofit organization Sunlight, Nutrition and Health Research Center. Grant holds a PhD in Physics from UC Berkeley and worked as a senior research scientist in the field of optical and atmospheric sciences at SRI International, JPL, and NASA Langley.

He published the first paper linking dietary factors to risk of developing Alzheimer’s disease in 1997. Since 2000, he has focused on ultraviolet-B (UVB) radiation and vitamin D and their relation to cancer and other diseases. He has written over 256 peer-reviewed articles, editorials, and letters to the editor on vitamin D and health.

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What is the real cause of melanoma? It’s not sunlight!

What do you know about melanoma?melanoma is not caused by sun exposure

May is Melanoma Awareness Month, Therefore, we will discuss some truths to be aware of:

  • First of all, seventy-five percent of these cancers occur on areas of the body that are seldom or never exposed to sunlight.[1] For example, research has shown that melanomas in women occur primarily on the upper legs, and in men more frequently on the back—areas of little sun exposure.
  • Most noteworthy, in the U.S., sun exposure has decreased by about 90% since 1935. In the same time, melanoma incidence has increased by 3,000%! [2] [3] [4]

Dr. Diane Godar furnishes this exceptionally important melanoma information:[5]

  • The same as in the US, while sun exposure in Europe has profoundly decreased, there has been a spectacular increase in the disease.
  • Men who work outdoors have about half the risk as men who work indoors. Hence, sun exposure could not me the cause.
  • in addition, outdoor workers, while receiving 3-9 times the sun exposure as indoor workers, have had no increase in melanoma since before 1940, whereas the incidence in indoor workers has increased steadily and exponentially.
  • Especially relevant is that sunscreen invention, along with its steadily increasing use, has not reduced the risk of melanoma. Rather, the disease has increased as sunscreen use has increased.
  • Increasing melanoma incidence significantly correlates with decreasing personal annual sunlight exposure.
  • Also, outdoor workers get many sunburns but still have dramatically lower risk of contracting the disease.

So, since melanoma increases as sun exposure decreases, should we continue to blame the sun?

Here are more facts you should know about the causes of melanoma:

  • First of all, people in the highest quintile (fifth) of alcohol consumption have a 65% increase in risk.[6]
  • Weekly meat consumption increases the risk of melanoma by 84% and daily fruit consumption reduces the risk by nearly 50%.[7]
  • Furthermore, those with the highest levels of blood PCBs have 7-times the risk compared to those with the lowest levels.[8]
  • Recent use of Viagra is associated with an 84% increase in risk, and long-term use of the drug is associated with a 92% risk increase.[9]
  • Finally, there is a positive association between melanoma and obesity.[10]

Furthermore, Dr. Adele Green found that the strongest risk factor for both limb and trunk melanoma was moles. The presence of more than 10 moles on the arm predicted a 42-times increased risk.[11]

Therefore, please stop blaming the sun. Safely embrace the non-burning sun and reduce your risk of melanoma.

References:

[1] Crombie IK. Distribution of malignant melanoma on the body surface.Br J Cancer. 1981 Jun;43(6):842-9.

[2] Melanoma International Foundation, 2007 Facts about melanoma. Sources: National Cancer Institute 2007 SEER Database, American Cancer Society’s 2007 Facts and Figures, The Skin Cancer Foundation, The American Academy of Dermatology.

[3] Ian D. Wyatt and Daniel E. Hecker. Occupational changes in the 20th century. Monthly Labor Review, 2006 pp 35-57: Office of Occupational Statistics and Employment Projections, Bureau of Labor Statistics.

[4] US Congress, Office of Technology Assessment, Catching Our Breath: Next Steps for Reducing Urban Ozone, OTA-O-412 (Washington, DC: US Government Printing Office, July 1989).

[5] Stephen J Merrill, Samira Ashrafi, Madhan Subramanian & Dianne E Godar. Exponentially increasing incidences of cutaneous malignant melanoma in Europe correlate with low personal annual UV doses and suggests 2 major risk Factors. Dermato-endocrinology 2015;7:1

[6] Millen AE, Tucker MA, Hartge P, Halpern A, Elder DE, Guerry D 4th, Holly EA, Sagebiel RW, Potischman N. Diet and melanoma in a case-control study. Cancer Epidemiol Biomarkers Prev. 2004 Jun;13(6):1042-51.

[7] Gould Rothberg BE, Bulloch KJ, Fine JA, Barnhill RL, Berwick M. Red meat and fruit intake is prognostic among patients with localized cutaneous melanomas more than 1 mm thick. Cancer Epidemiol. 2014 Oct;38(5):599-607.

[8] Gallagher RP, Macarthur AC, Lee TK, Weber JP, Leblanc A, Mark Elwood J, Borugian M, Abanto Z, Spinelli JJ. Plasma levels of polychlorinated biphenyls and risk of cutaneous malignant melanoma: a preliminary study. Int J Cancer. 2011  15;128(8):1872-80.

[9] Li WQ, Qureshi AA, Robinson K, Han J. Sildenafil use and increased risk of incident melanoma in US men: a prospective cohort study. JAMA Intern Med. 2014 Jun;174(6):964-70C

[10] Karimi K, Lindgren TH, Koch CA, Brodell RT. Obesity as a risk factor for malignant melanoma and non-melanoma skin cancer. Rev Endocr Metab Disord. 2016 Sep;17(3):389-403.

[11] Green AC, Siskind V. Risk factors for limb melanomas compared with trunk melanomas in Queensland. Melanoma Res. 2012 ;22(1):86-91.

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Get your sun and save your mind! Alzheimer’s disease is closely associated with a lack of sun exposure.

Get your sun, don;t shrink your brain with Alzheimer's

What is Alzheimer’s disease?

By Marc Sorenson, EdD, Sunlight Institute

Alzheimer’s disease is a plague in our modern world. It is a progressive mental deterioration that can occur in middle or old age, due to degeneration of the brain. Alzheimer’s is also the most common cause of premature senility. The United States will see a 44 percent increase in individuals with Alzheimer’s disease by 2025.[1] First of all, the disease occurs because amyloid plaques appear in brain tissue. These plaques consist of tangles of amyloid protein (a complex protein resembling starch) in nervous tissue. They are pathological markers of the disease that are found in spaces between the brain’s nerve cells. As a result of these plaques, the brain loses its ability to function properly.

Our experience with Alzheimer’s sufferers

My wife, Vicki, and I worked with residents of an assisted-care facility for over three years. We conducted and supervised church meetings for many disabled, elderly people. Because we worked up close and personally with these residents, we understood the devastating effects of Alzheimer’s. Many of these residents could not find their way to the church meeting room without our assistance. Therefore, they obviously had the disease. Additionally, it was manifest because many of them were unable to recognize us after our being away for a day. Also, they were prone to simply get up and leave the building and be found (if lucky) wandering outside.

Does sun exposure help to reduce Alzheimer’s?

First of all, research indicates that vitamin D and omega 3 fatty acids may help in removing the aforementioned plaques.[2] Therefore, they reduce the risk or severity of AD. So, the disease may be lessened by sun exposure, since 90% of vitamin D produced in the US population is due to sun exposure.[3]

Hence, it is no surprise that the latest research paper found high risk in low-sunlight countries. Consequently, the researchers stated: “According to sunlight data, we can conclude that countries with low average sunlight have high AD (Alzheimer’s disease) death rate.[4]

Are there other indications that sun exposure is associate to reduced risk?

Sun exposure directly correlates to non-melanoma skin cancer (NMSC). Therefore, the latter is often used as a sun-exposure indicator. It is thus compared with various diseases to evaluate the relationship between them and sun exposure. A 2013 article, published in the journal Neurology, reveals that among people with NMSC, the risk of Alzheimer’s disease (AD) is profoundly decreased:[5] Those with NMSC had a 79% reduction in disease risk. Stated another way, those without NMSC had about five times the risk of Alzheimer’s! Of course, this demonstrates the importance of sun exposure in reducing the risk, whether due to vitamin D production of from other photoproducts of the sun.

So, what is the bottom line? Be sure to obtain some unscreened, non-burning sun exposure and keep your marbles!

[1] Disease growth: U.S. will see average 44 percent increase in Alzheimer’s disease by 2025. Alzheimer’s Association 2015. https://www.alz.org/alzwa/documents/alzwa_resource_ad_fs_ad_state_growth_stats.pdf

[2] Champeau R. Vitamin D, omega-3 help clear amyloid plaques found in Alzheimer’s. UCLA Newsroom 2013.

[3] Reichrath J. The challenge resulting from positive and negative effects of sun: how much solar UV exposure is appropriate to balance between risks of vitamin D deficiency and skin cancer? Prog Biophys Mol Biol 2006;92(1):9-16

[4] Câmara AB, de Souza ID, Dalmolin RJS. Sunlight Incidence, Vitamin D Deficiency, and Alzheimer’s Disease. J Med Food. 2018 Mar 22 [Epub ahead of print].

[5] White RS, Lipton RB, Hall CB, Steinerman JR. Nonmelanoma skin cancer is associated with reduced Alzheimer disease risk. Neurology. 2013  21;80(21):1966-72.

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Sunshine research shows that sun exposure, not vitamin D, profoundly reduces Multiple Sclerosis (MS) risk.

MS prevention by sunlight. By Marc Sorenson, Ed.D. Sunlight Institute

What is MS?Photo of MS development

MS is a painful, debilitating, crippling, disease in which immune cells initiate an inflammatory response against myelin. Myelin is the nerves’ protective cover. It is rather like an electric wire that has lost its rubber cover. So, this process, known as demyelination, leaves the nerves bare and susceptible to “short circuiting.” From 85 to 170 people per 100,000 in the USA suffer from MS, and the rate among women, during the period from 1991 through 1994, has increased by 50% compared to the period from 1982 through 1986.  Also, as of 2010, the last year for which we could find statistics, there were 350,000-400,000 cases diagnosed in the USA.

There is no doubt that sunshine reduces the risk of MS, because The risk of multiple sclerosis in far northern areas, where there is little sunshine, is more than 100 times greater than it is in equatorial areas. So, in those areas, where sunlight is intense, due to directness of the sun, the rate of MS approaches zero. [1], [2], [3]

And do you know anyone who suffers from multiple sclerosis? They should probably read this blog and then obtain plenty of non-burning sun exposure.

The latest Research on MS, sun exposure and vitamin D.

A study carried out in Southern California corroborates the sun exposure benefits to MS reduction.[4]  First of all, the researchers recruited members of three different ethnicities (blacks, Hispanics and whites). In addition, they further divided those ethnicities into those who suffered from MS (known as cases) and those who were free from the disease (controls).  They then simultaneously examined lifetime sun exposure and blood vitamin D levels, accounting for genetic ancestry and other factors. The results were impressive:

  • Among blacks, the highest lifetime sun exposure was associated with a 47% lower risk, independently of blood levels of vitamin D.
  • Among whites, the highest lifetime sun exposure was associated with a 32% lower risk. In this group, highest vitamin D levels also associated with a lower risk of MS.
  • Among Hispanics, the highest lifetime sun exposure was associated with a 34% lower risk, independently of blood levels of vitamin D.

This is just the latest research to determine that sun exposure lessened the risk of MS independently of vitamin D. In addition, researchers used animals with experimental autoimmune encephalomyelitis (EAE) (an experimental form of MS). It was induced in animals in a lab setting and then used to determine the relative influences of UVR and vitamin D on MS. In conclusion, they stated, “These results suggest UVR [sun] is likely suppressing disease independent of vitamin D production. Thus, vitamin D supplementation alone may not replace the ability of sun (UV) to reduce MS susceptibility.”[5]

More on sunlight and MS from the same researchers

Later on, some of these same researchers investigated the mechanism by which sun exposure suppressed the disease and determined that UV light selectively inhibits spinal cord inflammation and demyelination.[6]

Furthermore, in another study, scientists performed an investigation with UVR. UVR is the same radiation emitted by the sun and sunbeds or sunlamps. It was administered to animals with EAE.[7] First of all, the researchers found that UVR treatments stopped inflammation and demyelination of the spinal cord. It did so by inhibiting a chemical known as a chemokine, also known as a cytokine. Cytokines are specialized proteins that are either inflammatory or anti-inflammatory in their nature. Therefore, inflammatory cytokines or chemokines are the cause of inflammation and autoimmune attacks resulting in MS. In addition, UVR directly initiated the MS-ameliorating effects, independent of vitamin D.

To conclude:

Finally, as wonderful as vitamin D is, we should realize this: The production of vitamin D is only one of the profoundly healthful effects that are due to  Sun Exposure. Hence, those who take vitamin D and believe they will derive all the benefits of sun exposure, are wrong. Consequently, they could be “dead wrong” in the case of a scourge like MS. So, be sure to obtain your full share of non-burning sunlight whenever possible. It could save your life. And, it could save the lives of those who have the disorder or who might be susceptible to it. Maybe we should start paying more attention to our sun exposure?

This is one of many blogs that I and others have written on this subject. In addition, here are a few more that may interest you:

http://sunlightinstitute.org/research-shows-sun-exposure-thwarts-multiple-sclerosis-ms/

http://sunlightinstitute.org/a-vitally-important-study-on-sunlight-and-multiple-sclerosis-ms/

http://sunlightinstitute.org/exceptionally-important-findings-on-sunlight-exposure-multiple-sclerosis-ms-and-brain-volume-independent-of-vitamin-d/

Embrace the sun! Without burning, of course

[1] Alter M, Yamoor M, Harshe M. Multiple sclerosis and nutrition. Arch Neurol l974;31:267-72.

[2] Kurtkze, J. Geography in multiple sclerosis. J Neurol 1977;215:1-26.

[3] Hayes CE, Cantorna MT, DeLuca HF.Vitamin D and multiple sclerosis. Proc Soc Exp Biol Med 1997;216:21-27

[4] Langer-Gould A, Lucas R, Xiang AH, Chen LH, Wu J, Gonzalez E, Haraszti S, Smith JB, Quach H, Barcellos LF. Nutrients. 2018 Feb 27;10(3).

[5] Becklund BR, Severson KS, Vang SV, DeLuca HF. UV radiation suppresses experimental autoimmune encephalomyelitis independent of vitamin D production. Proc Natl Acad Sci U S A. 2010;107:6418-23.

[6] Wang Y, Marling SJ, Beaver EF, Severson KS, Deluca HF. UV light selectively inhibits spinal cord inflammation and demyelination in experimental autoimmune encephalomyelitis. Arch Biochem Biophys. 2015  1;567:75-82

[7] Wang Y, Marling SJ, Beaver EF, Severson KS, Deluca HF. UV light selectively inhibits spinal cord inflammation and demyelination in experimental autoimmune encephalomyelitis. Arch Biochem Biophys. 2015  1;567:75-82.

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Of mice and men (or women): Sunlight reduces breast cancer beyond the effects of vitamin D. Another reason to embrace the sun.

Marc Sorenson, EdD, for breast cancer prevention. Prevent breast cancer with sunlight!

While many doctors know that ultraviolet radiation (UVR) from sunlight reduces risk of breast cancer, they have missed something. UVR stimulates production of vitamin D in human skin. Therefore, many health professionals assume that vitamin D is responsible for the reduced cancer risk. This may lead them to advocate the use of vitamin D supplementation and totally miss the bigger picture. In addition to vitamin D, UVR from sunlight or sunlamps produces many supplementary healthful photoproducts. Among others, nitric oxide, serotonin, endorphin and BDNF are produced by sunlight, and these photoproducts are vital to health. And, it is likely that these healthful photoproducts lead to an inhibition of breast cancer.

New research shows that sun exposure per se is capable of reducing the risk of breast cancer.

Consequently, it should not surprise us that for breast cancer, sunlight’s effects go beyond vitamin D.[1] Researchers at Children’s Hospital Oakland Research Institute, used a murine model (mice) that easily develops breast cancer, and treated them with UVR. Much as we might expect, they found that UVR treatments produced significant anti-cancer effects. Furthermore, they found that neither dietary vitamin D nor topical vitamin D influenced cancer risk. Because of their findings, they stated the following: “UVR’s inhibitory effects occur irrespective of whether or not the treatment increases circulating D3 in the mice.” Also, they made one more important comment regarding their research on breast cancer and UVR. “Therefore, supplemental D3 may not mimic all possible beneficial effects of UVR, and uncovering non-D3-mediated mechanisms of UVR tumor inhibition may lead to novel strategies for cancer prevention.”

An important point about vitamin D, sunlight and breast cancer.

Finally, there is no doubt that vitamin D has anticancer benefits. This research however, is especially relevant in that it corroborates what I have said in my soon-to-be-released book, Embrace the Sun. First of all, we must not put all of the benefits of sunlight in the vitamin D box. Secondly, sun exposure performs myriad miracles beyond vitamin D. One of those miracles may be breast cancer prevention and inhibition.  Thirdly, if we erroneously believe that we can obtain all of the sun’s benefits from popping a vitamin D pill, we may miss the holistic effects of the sun, which provide a cornucopia of salubrious results.

So, safely (without burning) embrace the sun and ease your mind about breast cancer.

[1] Anastasia M. Makarova, Flora Frascari, Parastoo Davari, Farzam Gorouhi, Philip Dutt, Lynn Wang, Akash Dhawan, Grace Wang, Jeffrey E. Green, Ervin H. Epstein, Jr. Ultraviolet radiation inhibits mammary carcinogenesis in an ER negative murine model by a mechanism independent of vitamin D3. Downloaded from cancerpreventionresearch.aacrjournals.org on April 12, 2018.

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