Publishing in The FASEB Journal, the authors describe how in laboratory tests, they compared the protection offered against either UVA radiation or free radical stress by several antioxidants, some of which are found in foods or cosmetics. While UVB radiation easily causes sunburn, UVA radiation penetrates deeper, damaging our DNA by generating free radicals which degrades the collagen that gives skin its elastic quality…
Blocking this molecule, called TRPV4, greatly protects against the painful effects of sunburn. …
source : http://www.foxnews.com/health/2013/06/24/summer-sun-safety-contact-lenses-with-uv-protection/
Everyone wants the secret to living longer. But, guess what? There isn’t just one way to prevent aging. Here are some tips that may help keep you young. 1. Always wear sunscreen. Applying it daily will reduce the sun’s harmful effects on your skin – and make you appear younger. Use a product that has UVA and UVB protection. This will ensure you are blocking out both the cancer-causing and aging rays. 2. Try to eat a Mediterranean diet.  Consuming vegetables, olive oil, fish and wine – in moderation – has been shown to slow an aging mind. This type of nutrition is also linked to a lower risk of heart disease, diabetes and certain cancers. 3. Exercise in order to stay sharp. Doing crossword puzzles, reading and catching up with friends will work your brain muscles. Don’t forget to incorporate some physical activity into your day as well. 4. Reduce stress. Deep breathing exercises, such as yoga, or even a change of pace, can help. Keeping your anxiety at bay will ward off signs of aging. If you are stressed, you will look and feel much older.source : http://www.foxnews.com/health/2012/07/25/4-ways-to-keep-yourself-young/
Unless you've been living under a rock, you know to apply sunscreen. There's a lifesaving reason to: About 3.5 million cases of skin cancer will be diagnosed this year. “The incidence of skin cancer, including melanoma—the deadliest kind—is going up, and wearing sunscreen is one of the best ways to prevent it,” said Dr. Ronald Moy, a dermatologist and spokesperson for the Skin Cancer Foundation. Stick with these smart tips—and check out our product picks—to make sure you're as protected as you can possibly be. Select a sunscreen you love Finding your sunscreen soul mate is the key motivating factor for using it regularly, experts agree. “If you think your sunscreen is pasty, thick or smelly, you have the wrong kind,” said Dr. Jeffrey Dover, clinical associate professor of dermatology at Yale University. “It may make you less likely to put it on, or to reapply when you do.” Happily, there are plenty of lightweight, sheer formulas, like Vichy Capital Soleil Foaming lotion SPF 50 ($29; vichyusa.com) and La Roche-Posay Anthelios 60 Ultra Light sunscreen fluid for face SPF 60 with Cell-Ox Shield XL ($30; laroche-posay.us). Health.com: Which Sunscreen Is Best For You? Remember, SPF 30 is the new 15 As a general rule, SPF 15 blocks 93 percent of UVB rays, SPF 30 blocks 97 percent and SPF 50 blocks 98 percent. Doctors now typically recommend at least SPF 30—at least being the key words. If you have a family history of skin cancer or are vacationing in a tropical spot (where the sun is especially intense), go for 50 or even 70. Just keep in mind: No sunscreen provides 100 percent protection. So to be as safe as possible, you still need to reapply every two hours and after a swim, even if you used the water-resistant kind, said Dr. Joshua Zeichner, director of cosmetic and clinical research in dermatology at Mount Sinai Hospital in New York City. Try Neutrogena Beach Defense sunscreen spray broad-spectrum SPF 30 ($11; at mass retailers). FYI, sunscreen becomes less effective about three years after you open the container. Check labels for the term broad-spectrum It means the sunscreen provides protection against both UVA (wrinkle- and cancer-causing) and UVB (burning) rays. Problem is, that labeling rule only went into effect in December and stores still sell inventory made prior to it, noted Dr. Steven Wang, director of dermatologic surgery and dermatology at Memorial Sloan-Kettering Cancer Center in Basking Ridge, N.J.  So if you're shopping and there's no broad-spectrum mention, check the ingredients for zinc or avobenzone, the only two that provide top-notch UVA coverage, he says. Coola Mineral Sport broad-spectrum SPF 35 Citrus Mimosa ($36; coolasuncare.com) contains zinc, and L'Oréal Paris Sublime Sun Liquid Silk Sunshield for face broad-spectrum SPF 30 ($10; at mass retailers) has avobenzone. Health.com: 7 Ways You're Aging Your Skin Layer it on Think you apply enough