FIVE Tips for Protection from Ultraviolet Radiation

You may have heard everywhere that you need protection from the sun. This is because the sun has harmful effects on the skin which can cause premature skin aging, skin cancer, sunburn and other problems. Exposure to ultraviolet radiation from the sun contributes to 90% of skin aging symptoms. Many skin changes that are generally believed to be due to aging, like wrinkles and easily irritated, was also due to prolonged exposure to UV radiation.Beauty across the water mmmmphoto © 2008 Torley | more info (via: Wylio)Ultraviolet is one of three types of solar radiation, the other two infrared (which provide the heat) and visible light. Ultraviolet radiation is divided into three types according to their wavelengths. UV-A has the shortest wavelength (100-290 nm), UV-B is wavelength (290-320 nm) and UV-C corrugated longest (320-400 nm). The more long-wave UV light, the greater the impact caused damage to the skin.
UV-A
UV-A rays are the most UV radiation cause. UV-A accounts for 95 percent of the radiation that reaches Earth's surface and 30-50 times more common than UV-B, although less intense. UV-A radiation is estimated to have had little effect on skin damage, but now studies show that UVA is a major contributor to skin damage and wrinkles. UV-A penetrates the skin more deeply than UV-B and work more efficiently. UV-A radiation penetrates to the dermis (second layer of skin) and can damage the fibers in it. Loss of elasticity and the skin becomes wrinkled. UV-A radiation intensity is more constant than the UV-B (all day). In addition, UV-A can penetrate the glass.
UV-B rays
UV-B rays are usually only damage the outer layer of skin (epidermis). It has the highest light intensity between the hours of 10:00 and 14:00 when the sun light. Most of the solar UV-B rays are blocked by the ozone layer in the atmosphere. UV-B does not penetrate glass.
A small amount of UV-B radiation is useful for the synthesis of vitamin D in the body, but excessive exposure to these rays can cause skin redness / burns and harmful effects of free radicals that trigger the synthesis of erythema and cataracts. UV-B rays also can cause photochemical damage to DNA in cells that trigger the growth of skin cancer.
UV-C
UV-C radiation pose the greatest danger and cause the most damage. But fortunately, the majority of these rays are absorbed in the atmospheric ozone layer. With the widespread destruction of the ozone layer due to the release of certain chemicals into the environment (ozone depleting chemicals) such as freon air conditioning and others, feared to be a lot of UV-C which passes into the earth and cause various adverse effects in humans.Tips on protection from ultraviolet radiation
Protection from excessive ultraviolet radiation is very important for your health. The following guidelines can help you protect your family from harmful UV radiation:

   A. Seek shade when you do outdoor activities in the afternoon or evening (especially in the hours 10:00 to 15:00). Do not think you're safe just because the sky was overcast. Ultraviolet radiation can pass through clouds and fog.
   2. Wear long-sleeved shirt, long pants, gloves, hats or umbrellas. Avoid radiation through thin clothing. When using an umbrella, an umbrella made of select opaque.
   3. Use a moisturizer (lotion) sunscreen and repeat the application several times, according to the instructions on the label. Choose a broad-spectrum sunscreen with a sun protection factor (SPF) of at least 15. Sunscreens do not provide full protection. Do not be too long in the hot sun while you use a sunscreen. Seek the shade.
   4. Wear sunglasses that filter out ultraviolet radiation. Your eyes do not have natural defenses against sun, and eye damage from UV rays can cause cataracts. The use of sunglasses can block over 95% UV-A radiation.
   5. Provide extra protection in infants and children. Skin of infants and children are more sensitive than adult skin, so they need extra protection when out in the hot sun for a long time. Children should wear hats, long sleeves and long pants. When you apply sunscreen on the kids, make sure it covers the body parts they are most vulnerable, including the hands, ears, face and neck. Avoid using sunscreen on babies.

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