But shades may not be a good thing.īlinded by the Light. Is there anyone who doesn’t own at least one pair of shades? We clutch them like a lifeline during the summer months. And what a success story the marketing of shades has been. Modern man has replaced the whalebone version with tinted lenses crafted from plastic or glass with various pigments to block part of the sunlight. I imagine it may also have filtered out some of the longer wavelengths and those may be more damaging.
The resulting filtration of light was amazingly effective. The body has a natural way to do that: eyebrows, eyelids and irises.Įskimos carved slits in whalebone and fashioned the pieces to fit over the eyes. Protecting the eyes from sunlight is a good idea. Still, too much of a good thing is sometimes bad. was an early advocate of the benefit of outdoor sunlight on eye health. Prominent and renowned ophthalmologist William Bates, M.D. Researchers Johan Moan, Alina Carmen Porojnicu, Arne Dahlback, and Richard B.
“the equivalent of modern-day snake oil.” Environmental Working Group Senior Vice President for Research Jane Houlihan called most of the best-selling sunscreens in the U.S. As a society, that is a tenfold benefit if we just get off the sunscreen/sun ban bandwagon. On the other hand, the improved vitamin D 3 intake would prevent 3000 cases of other cancers.
Sunburned eyeballs skin#
Norwegian researchers at the Institute for Cancer Research in Oslo found that doubling sunlight exposure would result in 300 more cases of skin cancer in Norway. Other researchers have even shown statistically that more lives would be saved by the increased vitamin D 3 production of healthy exposure to sunlight than are saved by blocking the sun with sunscreens. Garland bases the theory largely on a meta-analysis of general epidemiological data on melanoma and on recent experiments examining the role of vitamin D 3 in cancer prevention. Sunscreens prevent the skin from producing vitamin D 3, which in laboratory tests has been shown to help prevent damaged melanocytes from turning cancerous. Garland is also one of a growing number of scientists that believe the benefit of sunlight trumps the idea that it is harmful. Sunscreens give you a false sense of security.”ĭr. “So what happens is you end up getting an unnaturally high dose of ultraviolet-a. Garland, said in an interview reported in The New York Times. “When you block out ultraviolet-b light, you stop the skin from burning, which means that you can stay out in the sun for many hours or many days,” one of the researchers, Dr. But that leaves carcinogen suspect ultraviolet-a unaffected. The researchers reported that familiar sunscreens like PABA and homomenthyl salicylate block ultraviolet-b, a type of solar radiation that largely affects the upper layers of the skin and causes sunburn. Sunscreen may be the culprit Years ago, researchers at the University of San Diego proposed that sunscreen may actually contribute to causing cancer by a unique relationship with the solar light spectrum and the skin cells that can turn cancerous. But the benefits of moderate sunlight exposure appear to outweigh the risks if for one simple reason: Sunlight triggers the production of the all-important vitamin D 3. No one doubts the logic that baking your body in direct sunlight and singeing your skin might be unwise. Some debate whether normal sun exposure even causes cancer at all. The fact is, without sunlight and exposure to sunlight, we would die. Yet, despite our dependence on the sun, modern man views exposure to sunlight as a health risk and overexposure is believed implicated as a major cause of skin cancer. Millions of bodily processes happen because of sunlight. Sunlight is good for us, indeed, essential. Based on what the Mad Men say, Americans will be rushing to slather on sunscreen and spending billions of bucks on ways to block the sunlight. More than in winter, sunlight comes intensely to us through less atmospheric filtering. As Earth transits the annual circle of the Sun, our axial tilt leans the Northern Hemisphere more directly into the radiant glow.
You don’t have to have a weather app to know it’s been a warm spring and that summer is leering right around the corner.
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