Thursday, October 23, 2008

sunburn

Hi..
This time, I would like to share about the sunburn. This is because it is very close to our daily life. I got this article from the internet..
The article said that, Sunburn results from too much sun or sun-equivalent exposure. Almost everyone has been sunburned or will become sunburned at some time. Anyone who visits beach, goes fishing, works in the yard, or simply is out in the sun can get sunburn. Improper tanning bed use is also a source of sunburn. Although seldom fatal (sun poisoning), sunburn can be disabling and causes quite a bit of discomfort. Sunburn is literally a burn on your skin. It is a burn from ultraviolet (UV) radiation. The consequence of this burn is inflammation of the skin. Injury can start within 30 minutes of exposure. These are the causes of sunburn which is UVA and UVB refer to different wavelengths in the light spectrum. UVB is more damaging to the skin especially cancer. So, both UVA and UVB are responsible for photo ageing(premature ageing of the skin and wrinkles) and sunburn. Tanning beds produce both UVA and UVB rays. Travel to the southern United States, regions close to the equator, and placesat high altitudes all offer the unwary visitor an opportunity to be injured by sunburn. Certain light- skinned and fair haired people are at greater risk of sunburn injury. Prior recent sun exposure and prior skin injury are risk of sunburn , even in limited exposure to the sun. However, normal limited exposure to UV radiation produces beneficial vitamin D in the skin. In my opinion, we should prevent our skin from the sunburn to avoid any health problem and also we should take care of our skin..

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