|
Sun Damage | |||||
|
| |||||
|
April, 2005 MONTHLY SKIN CARE TIP What the Sun really does to your skin: 10 Minutes If you have light skin, your body makes enough vitamin D to keep your bones and immune system strong. The darker your skin, the less UV light penetrates. If you’re dark-skinned, it’s hard to get enough sun to make D without risking skin damage. So, if you diet’s not rich in D, you may want a supplement. 60 Minutes UVA rays penetrate skin, damaging collagen and elastin fibers. This damage causes wrinkles and fine lines to form and contributes to skin cancer. At the same time, sh ort-wave radiation from UVB light causes sunburn and mutations in genes that control the development of cancer. Normally, these genes tell cancer-causing cells to die. But when these genes are damaged by UVG rays, they can’t deliver their message, and dangerous cells continue to divide and multiply. 6 Hours As verified by research, a single blistering sunburn during childhood doubles your chance of developing melanoma. There’s no research on the impact of sunburn as an adult, but experts claim it’s likely to increase your risk of skin cancer also. It is said that going into the sun every day is less damaging than getting severely burned once a month – although neither alternative is recommended. Subtle exposure over time allows your skin to adapt, while a sunburn causes skin cells to divide and mutate more aggressively.
| |||||
|
| |||||
| |||||